Hi, I made a mod with gun & ammo, and in Eclipse everything is OK in Client and Server sides.

I'm recompiling -- OK

I'm reobf -- OK

I'm trying the Client.bat -- OK but my FML version in Minecraft menu is vnull.null.null.null

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But when i put Forge Client 3.4.9.171 in my .jar (and only Forge) and my Gun mod in the folder "mods" the launcher show me:

1 mod loaded
Minecraft Forge 3.4.9.171
FML v2.2.106.176
Forge Mod Loader version 2.2.106.176 for Minecraft 1.2.5
mod_MinecraftForge : Loaded (minecraft.jar)


      Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem.




--- BEGIN ERROR REPORT ad2e1cec --------
Generated 17/09/12 15:44

Minecraft: Minecraft 1.2.5
OS: Windows 7 (amd64) version 6.1
Java: 1.7.0_07, Oracle Corporation
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: GeForce GT 240M/PCIe/SSE2 version 3.3.0, NVIDIA Corporation

java.lang.NullPointerException
at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:356)
at cpw.mods.fml.common.Loader.modInit(Loader.java:273)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:628)
at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:223)
at net.minecraft.client.Minecraft.a(Minecraft.java:429)
at net.minecraft.client.Minecraft.run(Minecraft.java:738)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 465f4fe3 ----------

What does it mean???

Thx for your help and sorry for my English

You're over 90 versions out of date... Update that shit.

ok but update what?

My friends and I want to stay on this version because of some mods with which we play on our server are not on 1.3.2.

Sorry but I'm not good in english and I'm not sure to understand what you mean.

There is no legitimate reason to stay on 1.2.5, let alone write mods for it.

If you do you're on your own for debugging it.