Couldn't unpack natives!
There is nothing for us to work on. If your local settings somehow prevent the game from installing there is very little we can do programmatically.
You might have started it with the wrong permissions before (like Administrator) and now the files refuse to be updated because of permission-issues.
You might have an overly protective antivirus/firewall/similar 'protection' thing that needs to be turned off (and sometimes even completely uninstalled) for it to work.
On any 'basic' system the launcher works, if people somehow break their own system, or their access to it there is nothing the launcher can do beyond saying as much as it knows (which is what it does. In the case of the initial ticket here, the downloaded zip is broken, as we check every file after downloading, this is either some overprotective 'thing', a broken harddisk (bad sector for example) or an inability to update the file because of permissions etc etc.
For technical support please use the Mojang Support Center.
Original issue:
Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
From MCL-704
Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
From MCL-706
Launching game Looking for old natives to clean up... Deleting C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511195048196675 Unpacking natives to C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511225440440302 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
Environment
MAC OSX 10.7.5 (This is in the new Minecraft Dev Launcher)
Java 7 I believe
Linked Issues
is duplicated by35
MC-40762The game crashes when I try to launch itDuplicateMC-42233blue bar takes forever to load, and when it finally does, minecraft doesn't launchDuplicateMC-42235I load the launcher and click "Play", a long load, then the play button grays out and I can't click it and it just sits thereDuplicateMC-42253Cant use 1.7.4DuplicateMC-42472Launcher couldn't unpack natives while updating into 1.7.4DuplicateMC-44200Launcher freezes when I click playDuplicateMC-97935launcherDuplicateMC-97936Couldn't unpack natives!DuplicateMC-119883can't start minecraft after reinstallingDuplicate
MCL-674Not logging onDuplicateMCL-704Couldn't unpack natives!DuplicateMCL-706When I click Play in the new launcher that came with the Horse Update, I get a message anbount not being able to unpcak nativesDuplicateMCL-759Cannot UnzipDuplicateMCL-780Issue Launching Play with New LauncherDuplicateMCL-788[Launcher] Natives not unpacking?DuplicateMCL-1354Launcher reports "Couldn't unpack natives!" at first start of MinecraftDuplicateMCL-1908Couldn't unpack NativesDuplicateMCL-1916Minecraft Launcher dont start the game!DuplicateMCL-1919dfghdsfhfgdshdfghDuplicateMCL-1924Failed to launch gameDuplicateMCL-1931Win 8DuplicateMCL-1941Trying to install & play minecraft 1.7.2 or 1.7.4 ends with "Couldn't unpack natives!"DuplicateMCL-1943Minecraft not launchingDuplicateMCL-1955error in opening zip fileDuplicateMCL-1962Couldn't unpack natives! - IT IS A MINECRAFT ISSUE!DuplicateMCL-1966Won't allow me to play MinecraftDuplicateMCL-2049Couldn't unpack nativesDuplicateMCL-2059"Couldn't Unpack Native"DuplicateMCL-2060All day ive been trying to play minecraft and the launcher says cant unpack natives! Ive redownloaded the whole minecraft just to ge it to open up minecraft.my dad coulded even help me.it would even do any virsion on the launcher :(DuplicateMCL-2308Launcher fails to open MinecraftDuplicateMCL-2421I can't play anything before 1.7.4DuplicateMCL-4186Minecraft won't launchDuplicateMCL-4218Couldn't open natives!DuplicateMCL-4904Couldn't Unpack Natives. "Source does not exist"DuplicateMCL-7733Game won't start after clicking on "Start" trough the launcherDuplicaterelates to1
Attachments2
Created Issue:
Couldn't unpack natives!
Launcher opens up and then when I log in an error message in the Development Console says:
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileEnvironment
MAC OSX 10.7.5 (This is in the new Minecraft Dev Launcher)
Java 7 I believe
MC-14372 → MCL-130
![[Mod] Ezekiel (ezfe)](../../../data/assets/gravatar/ezekielelin.jpeg){kind=small}
Launcher opens up and then when I log in an error message in the Development Console says:
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704monospaced
Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
monospaced
Launcher opens up and then when I log in an error message in the Development Console says:
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704
monospaced
Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)monospacedLauncher opens up and then when I log in an error message in the Development Console says:
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704{{
Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
}}
Launcher opens up and then when I log in an error message in the Development Console says:
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704{{
Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
}}Launcher opens up and then when I log in an error message in the Development Console says:
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704{{Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)}}
Launcher opens up and then when I log in an error message in the Development Console say
s:Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704
{{Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)}}
Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704Launching game
Looking for old natives to clean up...
Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587
Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322)
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165)
at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447)
at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95)
at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10)
at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)From
MCL-706Launching game Looking for old natives to clean up... Deleting C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511195048196675 Unpacking natives to C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511225440440302 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
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(Mojang) Grum (Erik Broes)There is nothing for us to work on. If your local settings somehow prevent the game from installing there is very little we can do programmatically.
You might have started it with the wrong permissions before (like Administrator) and now the files refuse to be updated because of permission-issues.
You might have an overly protective antivirus/firewall/similar 'protection' thing that needs to be turned off (and sometimes even completely uninstalled) for it to work.On any 'basic' system the launcher works, if people somehow break their own system, or their access to it there is nothing the launcher can do beyond saying as much as it knows (which is what it does. In the case of the initial ticket here, the downloaded zip is broken, as we check every file after downloading, this is either some overprotective 'thing', a broken harddisk (bad sector for example) or an inability to update the file because of permissions etc etc.
Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)From
MCL-706Launching game Looking for old natives to clean up... Deleting C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511195048196675 Unpacking natives to C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511225440440302 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
(Mojang) Grum (Erik Broes)There is nothing for us to work on. If your local settings somehow prevent the game from installing there is very little we can do programmatically.
You might have started it with the wrong permissions before (like Administrator) and now the files refuse to be updated because of permission-issues.
You might have an overly protective antivirus/firewall/similar 'protection' thing that needs to be turned off (and sometimes even completely uninstalled) for it to work.On any 'basic' system the launcher works, if people somehow break their own system, or their access to it there is nothing the launcher can do beyond saying as much as it knows (which is what it does. In the case of the initial ticket here, the downloaded zip is broken, as we check every file after downloading, this is either some overprotective 'thing', a broken harddisk (bad sector for example) or an inability to update the file because of permissions etc etc.
Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)From
MCL-706Launching game Looking for old natives to clean up... Deleting C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511195048196675 Unpacking natives to C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511225440440302 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)(Mojang) Grum (Erik Broes)There is nothing for us to work on. If your local settings somehow prevent the game from installing there is very little we can do programmatically.
You might have started it with the wrong permissions before (like Administrator) and now the files refuse to be updated because of permission-issues.
You might have an overly protective antivirus/firewall/similar 'protection' thing that needs to be turned off (and sometimes even completely uninstalled) for it to work.On any 'basic' system the launcher works, if people somehow break their own system, or their access to it there is nothing the launcher can do beyond saying as much as it knows (which is what it does. In the case of the initial ticket here, the downloaded zip is broken, as we check every file after downloading, this is either some overprotective 'thing', a broken harddisk (bad sector for example) or an inability to update the file because of permissions etc etc.
For technical support please use the Mojang Support Center.
Original issue:
Launcher opens up and then when I log in an error message in the Development Console sayLauncher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip fileFrom
MCL-704Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)From
MCL-706Launching game Looking for old natives to clean up... Deleting C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511195048196675 Unpacking natives to C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511225440440302 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
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![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
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Duplicate of MCL-130, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being closed as duplicate.
Duplicate of MCL-130, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being closed as duplicate.
Duplicate of Invalid
MCL-130
If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
My (first) bug report was set to duplicate to MCL-130 (as many others). But MCL-130 is in status "Resolved" although no solution exists. There was a comment in MCL-130 from someone to disable the Virus-Program while installing MC; but this definitly does not lead to success for me (Avira).
Could Mojang please confirm that this problem is being re-open and being worked on? I have no working version of MC at all at this moment 
(
OK. Dupe of MCL-130, actually.
John Ascough: This is MCL-130
It means that your issue is the same as MCL-130.
Read MCL-130. If that won't help, please use the Mojang Support Center for technical support.
duplicate of MCL-130
duplicate of MCL-130
Thank you for your report!
However, this issue has been closed as a Duplicate of MCL-130.
It has been linked to this report. If you have additional information, please add it to the duplicated report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Can you copy the full log from the console of the new launcher?
Delete your: C:\Users\jbrac_000\AppData\Roaming\.minecraft\libraries folder and restart the launcher.
Is this still a concern in the current Minecraft / Launcher version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
No answer, assuming no longer an issue.
Same problem, would love for this issue to be re-opened and investigated further.
I too am having this problem. Be wonderful if it could be re-opened and looked into.
Possible fix - worked for me anyways. I simply disabled my anti-virus program (I use Kaspersky Internet Security 14), opened launcher, hit play, hey presto. Reactivated anti virus later, and still worked alongside it.
Good luck to you.
My (first) bug report was set to duplicate to
MCL-130(as many others). ButMCL-130is in status "Resolved" although no solution exists. There was a comment inMCL-130from someone to disable the Virus-Program while installing MC; but this definitly does not lead to success for me (Avira).Could Mojang please confirm that this problem is being re-open and being worked on? I have no working version of MC at all at this moment
(
Same for me. Purchased this yesterday, and cant get it to work. Tried all the above (i.e. deleting .minecraft\libraries folder - but it was a new install, so didn't expect this to work. No virus program)
Is it being worked on?
There is nothing for us to work on. If your local settings somehow prevent the game from installing there is very little we can do programmatically.
You might have started it with the wrong permissions before (like Administrator) and now the files refuse to be updated because of permission-issues.
You might have an overly protective antivirus/firewall/similar 'protection' thing that needs to be turned off (and sometimes even completely uninstalled) for it to work.
On any 'basic' system the launcher works, if people somehow break their own system, or their access to it there is nothing the launcher can do beyond saying as much as it knows (which is what it does. In the case of the initial ticket here, the downloaded zip is broken, as we check every file after downloading, this is either some overprotective 'thing', a broken harddisk (bad sector for example) or an inability to update the file because of permissions etc etc.
Its a brand new install. Its nothing to do with permissions - its a fairly basic system. There are no antivirus/firewalls in place. I haven't broken my system, its never worked.
If you wont do anything to help me get this working, can I have my money back?
You could try to visit: http://webchat.esper.net/?channels=minecrafthelp and see if one of the great volunteers can help you out. If nothing works you can contact Customer Service and request a refund.
I just tried to submit this error - MCL 1962 - again because simply marking it as a duplicate to an error that has been marked resolved but clearly is NOT is not functional. There seems to be an increase in the report of this error in the last few days - either a launcher 1.3.7 issue or a game 1.7.4 issue. Too many of us have either had the error with absolutely clean installs, or without anti-virus programs activated and without any permissions issues for this to be solely on our end. Or, even if it is, is seems widespread enough and disabling enough that it would be in Mojang's best interest to try work with us to figure it out. I will be calling and getting a refund. Thanks. Jim.
I was playing Minecraft when I felt like installing a mod (terrafirmacraft). As tutorials suggested, I made a backup and deleted the .Minecraft folder. Then, I started the launcher, tried to start the game in vanilla, and this problem occurred. No versions work, and none of my backups will load either. I've been searching for an hour now with no working solutions to be found. For now, I have no way of playing Minecraft, and would love for this to be figured out.
Having the exact same issue, on three computers. All of them were running Vanilla Minecraft 1.7.2 with no problems at all. As soon as the 1.7.4 update came out, I got this error on all three. Have disabled firewall and anti-virus (Security Essentials), and have removed the libraries folder, but have not had any luck.
Nothing has changed on these systems - no permission changes were made, no changes to antivirus, the JVM version hadn't even changed when the issue began (although it is updated now and sadly, that has not helped.) The update itself seems to be causing the issue.
Hey guys, try moving your launcher executable to a different folder. This fixed it on two of my machines (haven't tested the third.) I have no idea why I can't launch it from the desktop anymore, even though I've been doing so for years. But, in the short run, this worked for me. Hope this helps!
In having the same problems, how the frick do i fix it?
Thx i got it fixed =)
On Jan 1, 2014 2:34 AM, "[Mod] Kumasasa (JIRA)" <jira@mojang.atlassian.net>
After three weeks research I gave up: The only way for my computer to get this fixed (
MCL-1941) was to re-install Windows 7 Ulimate completely from scratch.Some of the downloaded components were changed by whatever mechanism for whatever reason so that a "Hash did not match downloaded file" message as shown multiple times in the attached log of
MCL-1941appeared; finally leading to the famous "Could not unpack natives".The explanation I found via google that might come closest to source of the actual problem behind that issue is that some program piece suspects some sound and/or picture files as malware and replaces them with some other arbitrary stuff leading to that "Hash did not match..." message. But although after deleting a couple of these "helpful" programms like "Avira ask search toolbar" the hash mismatch was gone; nevertheless minecraft crashed with some ogg file header issue...
will someone help me just fi it ive tried everything! Please!