Ok, I get this error not when I start MC but when I generate a new world:

 

 

java.lang.NoSuchMethodError: pb.isGenMineableReplaceable(Lxd;III)Z

at eh.a(WorldGenMinable.java:61)

at yg.a(SourceFile:236)

at yg.b(SourceFile:250)

at yg.a(SourceFile:68)

at yg.a(SourceFile:27)

at abn.a(SourceFile:215)

at aly.a(SourceFile:460)

at ko.a(ChunkProvider.java:205)

at ack.a(Chunk.java:1192)

at ko.c(ChunkProvider.java:115)

at ko.b(ChunkProvider.java:128)

at .d(World.java:647)

at .a(World.java:562)

at net.minecraft.client.Minecraft.e(Minecraft.java:2199)

at net.minecraft.client.Minecraft.a(Minecraft.java:2085)

at net.minecraft.client.Minecraft.a(Minecraft.java:2032)

at net.minecraft.client.Minecraft.a(Minecraft.java:1943)

at xh.a(SourceFile:163)

at vp.a(SourceFile:74)

at xh.a(SourceFile:233)

at vp.f(SourceFile:122)

at vp.i(SourceFile:110)

at net.minecraft.client.Minecraft.k(Minecraft.java:1567)

at net.minecraft.client.Minecraft.x(Minecraft.java:822)

at net.minecraft.client.Minecraft.run(Minecraft.java:750)

at java.lang.Thread.run(Unknown Source)

--- END ERROR REPORT 21442027 ----------

 

 

I'm guessing its a forge error because of the No such method error part.

You're using something that edits pb.class besides forge, most likely the 4096 fix, dont use it.

As long as Forge is the ONLY thing you install into your jar, you wont get this issue.

ok, but if I don't use it I get a white screen at the Mojang logo

 

nevermind, it does it with an older version of forge. I updated and it fixed it. I downgraded because IC2 told me it couldn't find that same class. It's just a big error on my part

 

i got the same error, when i tried to generate new world. forge error report told me, that it was not installed correctly. then this error followed

 

You're using something that edits pb.class

 

thx for the info, when i get an error again with pb class, i know what to do then