Unable to start Skyfactory 3

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pkburr02

New Member
Jan 18, 2022
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I have completely setup a computer from scratch just to use as a test server for this.

It's a Windows 10 machine with 16gb of memory and an i5 processor. Literally all it has is Windows, Java (64bit) and of course the SkyFactory Server. I've set the script to allocate currently 4-8gb of memory min/max to Java.

I finally got it to install the server files (3 installers later). But now when I go to start the server it just gives me the error below. I've googled it but I've been unable to find anything that specifically helps with this issue that's not an indepth review of Java programming. Any help would be appreciated.

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:62)
at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31)
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
Press any key to continue . . .
 
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