RiverRoulette Posted October 16, 2021 Share Posted October 16, 2021 OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0 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.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) this is the error and i have no idea what it means, please help Quote Link to comment Share on other sites More sharing options...
Founder brunyman Posted October 16, 2021 Founder Share Posted October 16, 2021 Hi, what operating system do you run? Windows, MAC, Linux? What launcher executable do you use? Try to delete your launcher installation and download the latest version here: Do a fresh install Quote Link to comment Share on other sites More sharing options...
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