I am new to installing forge and i spent about 2 hours researching my error but cant find any solutions:

I have forge installed and verified, but when i go to single player and create a new world or try and enter an old one then it gives me the following error:

 

(Yes this is CLIENT forge, Yes it is the latest version and No i did not use an installer, all manual)

 

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ERROR REPORT:

---- Minecraft Crash Report ----

// Uh... Did I do that?

 

Time: 12/23/12 1:15 AM

Description: Exception in server tick loop

 

java.lang.NoClassDefFoundError: org/bouncycastle/jce/provider/BouncyCastleProvider

at bdz.c(IntegratedServer.java:99)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

at fy.run(SourceFile:849)

Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.BouncyCastleProvider

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:179)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

... 3 more

Caused by: java.lang.NullPointerException

at org.objectweb.asm.ClassReader.<init>(Unknown Source)

at net.minecraftforge.transformers.EventTransformer.transform(EventTransformer.java:29)

at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:222)

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:171)

... 5 more

 

 

A detailed walkthrough of the error, its code path and all known details is as follows:

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-- System Details --

Details:

Minecraft Version: 1.4.6

Operating System: Windows 7 (amd64) version 6.1

Java Version: 1.6.0_26, Sun Microsystems Inc.

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Sun Microsystems Inc.

Memory: 466744872 bytes (445 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)

JVM Flags: 2 total; -Xms512m -Xmx1024m

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Suspicious classes: FML and Forge are installed

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v7.25 FML v4.6.12.511 Minecraft Forge 6.5.0.471 3 mods loaded, 3 mods active

mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Profiler Position: N/A (disabled)

Player Count: 0 / 8; []

Type: Integrated Server (map_client.txt)

Is Modded: Definitely; Client brand changed to 'forge,fml'

 

 

 

 

 

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any help would be much appriciated

Grab http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar and place in minecraft/lib.

Thank you so much! I'm glad i finaly got it

 

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