I'm having a problem with forge, I recently installed Terrafirma craft and also installed forge so I could play the mod, Minecraft started up without any problems, but when I load a world/server it crashes giving me that error message that everybody has seen at least once. I wondered if it was TFCraft so I opened up MagicLauncher, made sure forge loaded first, tested it again, got the same error. I ended up disabling TFCraft to see if that was the problem but I still got the same error. I disabled Forge and loaded a world and I didn't get an error. Please help I really want to play TFCraft. I don't really know how to find the modloader.txt but here's the error report I keep getting
Mods loaded: 5
ModLoader 1.2.5
mod_ModLoaderMp 1.2.5v1
mod_MinecraftForge 3.2.3.108
mod_TFC_Core 0.2a
mod_ModLoaderMp 1.2.5v1
Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem.
--- BEGIN ERROR REPORT 845895d7 --------
Generated 6/1/12 3:38 PM
Minecraft: Minecraft 1.2.5
OS: Windows 7 (amd64) version 6.1
Java: 1.7.0_04-ea, Oracle Corporation
VM: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: ATI Radeon HD 3600 Series version 3.3.11631 Compatibility Profile Context, ATI Technologies Inc.
java.lang.NullPointerException
at com.pclewis.mcpatcher.mod.Colorizer.colorizeBiome(Colorizer.java:125)
at gu.b(SourceFile:23)
at uf.c(BlockLeaves.java:53)
at vl.o(RenderBlocks.java:3180)
at vl.b(RenderBlocks.java:375)
at ct.a(WorldRenderer.java:211)
at l.a(RenderGlobal.java:1461)
at lr.a(EntityRenderer.java:1070)
at lr.b(EntityRenderer.java:903)
at EntityRendererProxy.b(EntityRendererProxy.java:21)
at net.minecraft.client.Minecraft.x(Minecraft.java:869)
at net.minecraft.client.Minecraft.run(Minecraft.java:747)
at java.lang.Thread.run(Thread.java:722)
--- END ERROR REPORT 5f55659e ----------