WoolyMamit Posted April 12, 2022 Share Posted April 12, 2022 I am using the server files offered by Feed the Beast for their revelations modpack. Whenever I run start.bat I receive this message: A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34) Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 6 more The server.jar will open and run, but the forge.jar will not. What can I do to fix this? Link to comment Share on other sites More sharing options...
Luis_ST Posted April 12, 2022 Share Posted April 12, 2022 which version of Forge did you use and which java version? Link to comment Share on other sites More sharing options...
WoolyMamit Posted April 12, 2022 Author Share Posted April 12, 2022 I am using java 8. How do I check which forge version I am using? Link to comment Share on other sites More sharing options...
Luis_ST Posted April 12, 2022 Share Posted April 12, 2022 33 minutes ago, WoolyMamit said: How do I check which forge version I am using? which one did you install? Link to comment Share on other sites More sharing options...
WoolyMamit Posted April 12, 2022 Author Share Posted April 12, 2022 (edited) 2 hours ago, Luis_ST said: which one did you install? The one that I installed is forge-1.12.2-14.23.5.2846-universal. Edited April 12, 2022 by WoolyMamit Link to comment Share on other sites More sharing options...
WoolyMamit Posted April 12, 2022 Author Share Posted April 12, 2022 5 hours ago, Luis_ST said: which one did you install? figured it out Link to comment Share on other sites More sharing options...
Recommended Posts