Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by TheRaspPie
, 1 year ago
via GitHub by pabluuz
, 1 year ago
value already present: gaseousdreadiaessentia
via north-craft.com by Unknown author, 2 years ago
value already present: plasticgas
via GitHub by pabluuz
, 2 years ago
value already present: gaseousdreadiaessentia
via minecraftforge.net by Unknown author, 2 years ago
value already present: net.minecraftforge.fluids.Fluid@276863c1
via csdn.net by Unknown author, 2 years ago
value already present: c
java.lang.IllegalArgumentException: value already present: null	at com.google.common.collect.HashBiMap.put(HashBiMap.java:238)	at com.google.common.collect.HashBiMap.put(HashBiMap.java:215)	at org.spongepowered.common.world.WorldManager.registerWorldProperties(WorldManager.java:331)	at org.spongepowered.common.world.WorldManager.loadWorld(WorldManager.java:597)	at org.spongepowered.common.world.WorldManager.loadWorld(WorldManager.java:553)	at net.minecraft.server.MinecraftServer.loadWorld(SourceFile:406)