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Minecraft examplemod doesn't start in eclipse

AstroDaFloof
in Modder Support

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Posted

Im very new to minecraft modding and I basicly have 0 experience with coding.
I setup my eclipse workspace and everything seems to be working. I try running the example mod (without changing a single bit of code) but it cant start the game and just gives me this error. Any help on how to fix this?

Exception in thread "main" 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.minecraftforge.gradle.GradleStartCommon.searchCoremods(Unknown Source)
    at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source)
    at GradleStart.main(Unknown Source)
 

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https://forums.minecraftforge.net/topic/114023-minecraft-examplemod-doesnt-start-in-eclipse/
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