I downloaded the current forge for 1.4.2, coped all files into my minecraft.jar, ran the game it worked fine.

Then I joined my bukkit server and after about 5 second it crashed with this error:

 

--- BEGIN ERROR REPORT 7fd6eca3 --------
Generated 05/11/12 8:35 AM

- Minecraft Version: 1.4.2
- Operating System: Linux (amd64) version 3.0.0-19-generic
- Java Version: 1.6.0_23, Sun Microsystems Inc.
- Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
- Memory: 430350016 bytes (410 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- AABB Pool Size: 18931 (1060136 bytes; 1 MB) allocated, 1327 (74312 bytes; 0 MB) used
- FML: MCP v7.19 FML v4.2.6.422 Minecraft Forge 6.0.1.341 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
- LWJGL: 2.4.2
- OpenGL: GeForce 9800 GT/PCIe/SSE2 GL version 3.3.0 NVIDIA 295.20, NVIDIA Corporation
- Is Modded: Definitely; 'forge,fml'
- Type: Client
- Texture Pack: Eliminator's Pack 2
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 588 (32928 bytes; 0 MB) allocated, 588 (32928 bytes; 0 MB) used
- World MpServer Entities: 9 total; [axc['Eliminator'/87996, l='MpServer', x=-389.71, y=67.62, z=122.89], qa['Zombie'/88110, l='MpServer', x=-407.72, y=49.00, z=130.34], qa['Zombie'/88109, l='MpServer', x=-404.28, y=49.26, z=130.62], pg['item.item.rottenFlesh'/88119, l='MpServer', x=-378.09, y=64.13, z=125.34], pg['item.item.rottenFlesh'/88118, l='MpServer', x=-374.22, y=63.13, z=121.09], px['Slime'/88117, l='MpServer', x=-381.63, y=5.00, z=114.38], pg['item.item.dyePowder.black'/88120, l='MpServer', x=-371.13, y=59.13, z=128.19], qa['Zombie'/87989, l='MpServer', x=-398.83, y=57.00, z=121.69], pm['Enderman'/88122, l='MpServer', x=-334.34, y=62.00, z=174.78]]
- World MpServer Players: 1 total; [axc['Eliminator'/87996, l='MpServer', x=-389.71, y=67.62, z=122.89]]
- World MpServer Chunk Stats: MultiplayerChunkCache: 120
- Forced Entities: 12 total; [pg['item.item.rottenFlesh'/88119, l='MpServer', x=-378.09, y=64.13, z=125.34], axc['Eliminator'/87996, l='MpServer', x=-389.71, y=67.62, z=122.89], pg['item.item.rottenFlesh'/88118, l='MpServer', x=-374.22, y=63.13, z=121.09], px['Slime'/88117, l='MpServer', x=-381.63, y=5.00, z=114.38], pg['item.item.rottenFlesh'/88119, l='MpServer', x=-378.09, y=64.13, z=125.34], pg['item.item.rottenFlesh'/88118, l='MpServer', x=-374.22, y=63.13, z=121.09], qa['Zombie'/87989, l='MpServer', x=-398.83, y=57.00, z=121.69], pg['item.item.dyePowder.black'/88120, l='MpServer', x=-371.13, y=59.13, z=128.19], qa['Zombie'/88110, l='MpServer', x=-407.72, y=49.00, z=130.34], qa['Zombie'/88109, l='MpServer', x=-404.28, y=49.26, z=130.62], pm['Enderman'/88122, l='MpServer', x=-334.34, y=62.00, z=174.78], pg['item.item.dyePowder.black'/88120, l='MpServer', x=-371.13, y=59.13, z=128.19]]
- Retry Entities: 0 total; []

java.lang.NoSuchFieldError: randomMobsInfo
at com.pclewis.mcpatcher.mod.MobRandomizer$ExtraInfo.getInfo(MobRandomizer.java:86)
at com.pclewis.mcpatcher.mod.MobRandomizer.randomTexture(MobRandomizer.java:32)
at com.pclewis.mcpatcher.mod.MobRandomizer.randomTexture(MobRandomizer.java:25)
at bal.a(SourceFile:190)
at bal.a(SourceFile:76)
at bae.a(RenderBiped.java:143)
at bbf.a(SourceFile:44)
at bbf.a(SourceFile:6)
at azw.a(RenderManager.java:196)
at azw.a(RenderManager.java:183)
at ayy.a(RenderGlobal.java:445)
at ayt.a(EntityRenderer.java:1093)
at ayt.b(EntityRenderer.java:949)
at net.minecraft.client.Minecraft.J(Minecraft.java:884)
at net.minecraft.client.Minecraft.run(Minecraft.java:779)
at java.lang.Thread.run(Thread.java:679)
--- END ERROR REPORT 395e6cd0 ----------

Wait! Its MC patcher that causing this! Dose not Forge allow MC patcher as well?

Well, Forge is incompatible with MCPatcher last I heard. If you're using it for HD textures, you'll have to work with Optifine. If you use it to install mods, try using MultiMC.

Sorry for posting here, just needed the new MC patcher.

 

HD textures works fine using MC patcher and forge, thanks.