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Uncaught exception in thread "main" #4050
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you are using the wrong java version. 1.21 requires java 21. This is not a fabric api issue |
I have tryed every version including 21 and they all still don't work |
then you are doing it wrong. the issue tracker is not meant for getting assistance with your computer setup. please use the discord or the discussions tab. This is not a Fabric API mod issue. |
👋 We use the issue tracker exclusively for final bug reports and feature requests. However, this issue appears to be better suited for either a discussion thread, or a message on our discord server. Please post your request on one of these, and the conversation can continue there. |
I was trying to launch my 1.21 server and it returned this error
[18:17:22] [ERROR] [FabricLoader/]: Uncaught exception in thread "main"
java.lang.RuntimeException: An exception occurred when launching the server!
at net.fabricmc.loader.impl.launch.server.FabricServerLauncher.main(FabricServerLauncher.java:71)
Caused by: java.lang.RuntimeException: Error invoking MC server bundler: java.lang.UnsupportedClassVersionError: net/minecraft/bundler/Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at net.fabricmc.loader.impl.game.minecraft.BundlerProcessor.process(BundlerProcessor.java:102)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.locateGame(MinecraftGameProvider.java:192)
at net.fabricmc.loader.impl.launch.knot.Knot.createGameProvider(Knot.java:175)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:130)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)
at net.fabricmc.loader.impl.launch.knot.KnotServer.main(KnotServer.java:23)
at net.fabricmc.loader.impl.launch.server.FabricServerLauncher.main(FabricServerLauncher.java:69)
Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/bundler/Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:879)
at net.fabricmc.loader.impl.game.minecraft.BundlerProcessor$1.loadClass(BundlerProcessor.java:65)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at net.fabricmc.loader.impl.game.minecraft.BundlerProcessor.process(BundlerProcessor.java:85)
... 6 more
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