Direwolf 20 Server Not Starting

  • Tech Support section is for getting help with FTB related problems. If there's a repeatable issue that can be labeled as a bug, then please use the issue tracker for the pack or the app at GitHub issue trackers - If there's no repository for a pack that means that the pack is old and/or will not be updated. Bugs for older packs will not be fixed, unless they are critical.

abraxisVetitini

New Member
Dec 31, 2019
1
0
1
The Direwolf 20 server my friends and I have been playing on now gives me an error when running the StartServer.bat file. It says:

Detected following JVM error:
=======================================
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object
=======================================
JVM test failed. Can't run server, Exiting...
Press any key to continue . . .

I have reinstalled java and deleted the modpack to force the launcher to reinstall it. Does anyone have suggestions?
 

grandrolf

Global moderator
Team Member
Global Moderator
Trusted User
Aug 29, 2014
2,658
246
133
sweden
What java version do you have installed?

Open Command Prompt or PowerShell and type:

java -version

And show the results. (take a screenshot of the window and share here, use imgur.com and share the link)