Issue running mod packs

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1st Official Post

    Hello I'm trying to run mods through twitch launcher.


    but I get this message all the time


    Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option PermSize; support was removed in 8.0

    Exception in thread "main" java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader

    at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34)

    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


    I looked at other forums on here, going to the settings and switching the java version there does not work for me as I can not switch versions. that section is grayed out for me and it says java 10.0.1.0 but I can't click it. Please help me! its frustrating


    also tried switching to JAR launcher but it did nothing for me. I tried uninstalling java but im unsure if I did it correctly or not.


    if you know the solution I bless you! let me know! lol thanks in advance for anyone who tries helping me!


    I also included screenshot of how it appears for me in my twitch settings.

    I haven't use modpack in the really long time, so bare with me here.


    What i experience with modpack that can gave me an error or can't even launch or even have stable gameplay, it's because your system hardware. What i mean is you don't have the CPU to handle all the mods in the modpack, because even if i try to playing a modpack, with the CPU that can't handle it(personal experience, i have bad CPU till this very day), it give an error, or even crash the game.


    PS. This is from my experience with modpacks, i could be right and could be wrong.

  • Roman

    Closed the thread.