Minecraft forge 1.12.2 won't launch

By notacrocodile
November 9, 2020 in Support & Bug Reports

Followers 0

Start new topic

Recommended Posts

notacrocodile

Posted November 9, 2020

- Share

Posted November 9, 2020

i just installed forge for 1.12.2 but everytime I try to launch i get this error message, i reinstalled java and forge, reinstalled .minecraft but it doesn't seem to work

Picked up _JAVA_OPTIONS: -Xmx640m 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.(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Link to comment

Share on other sites

This topic is now closed to further replies.

Followers 0

Go to topic listing

Announcements

Recently Browsing
- No registered users viewing this page.
Posts
- Forge Server crashing with modpack installed
  
  By zShurii · Posted 6 minutes ago
  
  You my man are a genius. Server is running now. I have some Server issues but i guess that depends on my RAM. Thank you!
- Forge Server crashing with modpack installed
  
  By TileEntity · Posted 1 hour ago
  
  You can't - in most cases, these mods are mentioned in the crash-report Remove Distant Horizons from the server
- Forge Server crashing with modpack installed
  
  By zShurii · Posted 1 hour ago
  
  I also removed impactful. It gave me a different log from what i see.. Logs: https://pastebin.com/FQgC7BjS Okay and how exactly do i find out if the mod is for client only?
- Forge Server crashing with modpack installed
  
  By TileEntity · Posted 5 hours ago
  
  Also remove impactful from the server client-side-only mods are mods making "player" related changes which a server does not have HUD mods, Minimaps, Mods adding/changing settings, graphic, animation and sound mods etc
- supplementeries broke after updateing
  
  By TileEntity · Posted 5 hours ago
  
  Update MoonlightLib, too
Topics
- 9
  
  Forge Server crashing with modpack installed
  
  zShurii · Started Yesterday at 11:43 AM
- 1
  
  supplementeries broke after updateing
  
  Liberty_Launcher · Started 17 hours ago
- 1
  
  REI not showing recipes anymore
  
  Jasperlackin · Started 14 hours ago
- 1
  
  MC crashing without knowing what mods
  
  Fishy_Cream · Started 12 hours ago
- 1
  
  [1.19] Mod attempts to load LocalPlayer on dedicated server
  
  ISenseHostility · Started July 24, 2022
Who's Online (See full list)
- Ugdhar
- zShurii
- Theodore Isabella
- No_Eruzu
- morenotti
- Nella

Sign In

Minecraft forge 1.12.2 won't launch

Recommended Posts

notacrocodile

Link to comment

Share on other sites

Announcements

Recently Browsing

Posts

Topics

Who's Online (See full list)

Browse

Activity

Important Information