[1.14.4] finished with non zero exit value 1

[DarkAssassin]

the part of the console that features visible errors is this:

 

[mException in thread "main" [32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]: java.lang.RuntimeException: java.lang.IllegalArgumentException: Unsupported class file major version 57
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]:     at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]:     at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]:     at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]:     at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]:     at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1049]:     at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]: Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 57
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at org.objectweb.asm.ClassReader.<init>(ClassReader.java:176)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at org.objectweb.asm.ClassReader.<init>(ClassReader.java:158)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at org.objectweb.asm.ClassReader.<init>(ClassReader.java:146)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at org.objectweb.asm.ClassReader.<init>(ClassReader.java:273)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:82)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at org.objectweb.asm.tree.ClassNode.accept(ClassNode.java:368)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:74)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformerClassWriter.<init>(TransformerClassWriter.java:48)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:241)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:128)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at java.base/java.lang.Class.forName0(Native Method)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at java.base/java.lang.Class.forName(Class.java:416)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
[m[32m[16:45:52] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1058]:     ... 5 more

 

what ist the problem im having?

[Ugdhar]

Googling "Unsupported class file major version 57" yields some results, and one comment caught my eye.

Quote

At a low level it means your version of Java is incompatible with the one with which Gradle was compiled.

Are you sure you're using Java 8?

[Animefan8888]

3 minutes ago, DarkAssassin said:

what ist the problem im having?

Looks like you are using Java 9+ you need to use Java 8.