MCL-8063Minecraft Launcher Crashing?! 1.12.1
Trying to play the latest version of Minecraft 1.12.1 and I keep getting this error message in the Game Output:
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Can you help??
Environment
Using the Java Minecraft Launcher 1.6.61 to load up the latest version of Minecraft 1.12.1.
MC-114876
Created Issue:
Minecraft Launcher Crashing?! 1.12.1
Trying to play the latest version of Minecraft 1.12.1 and I keep getting this error message in the Game Output:
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)Can you help??
Environment
Using the Java Minecraft Launcher 1.6.61 to load up the latest version of Minecraft 1.12.1.
![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
Trying to play the latest version of Minecraft 1.12.1 and I keep getting this error message in the Game Output:
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)Can you help??
Trying to play the latest version of Minecraft 1.12.1 and I keep getting this error message in the Game Output:
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)Can you help??
![[Bot] Arisa](../../../data/assets/gravatar/mustek2.png){kind=small}
Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response.
We do not have enough information to find the cause of this issue.
Please attach the launcher log (.minecraft/launcher_log.txt) here.
Once attached, the report will be reopened automatically.
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From
MCL-1905:This Issue is potentially caused by Antivirus Programs and/or Firewall Programs, especially Norton. Try disabling it while launching Minecraft and see if it helps. If it does maybe consider using a different Antivirus Program.
Also, this issue might easily be fixed by reinstalling Minecraft.
You could also try updating Java.
If none of this works, try community support.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Thank you! Did everything you suggested and seems to be working just fine now!