Server crash upon Tekkit 2.0 update

[Stormhornet]

2012-02-25 00:02:44 [FINE] ModLoader Server 1.1 Initializing...

2012-02-25 00:02:44 [iNFO] ModLoader Server 1.1 Initializing...

2012-02-25 00:02:44 [FINER] Adding mods from C:\Users\Stormhornet\Downloads\Minecraft Server\Tekkit Server\mods\[1]buildcraft-2.2.11-b1.0.1R1-r2.zip

2012-02-25 00:02:44 [FINER] Zip found.

2012-02-25 00:02:44 [FINE] Failed to load mod from "mod_BuildCraftBuilders.class"

2012-02-25 00:02:44 [FINER] THROW

java.lang.AbstractMethodError: net.minecraft.server.BaseMod.getVersion()Ljava/lang/String;

at net.minecraft.server.BaseMod.toString(BaseMod.java:51)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:183)

at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)

at net.minecraft.server.ModLoader.init(ModLoader.java:683)

at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

2012-02-25 00:02:44 [sEVERE] Unexpected exception

java.lang.AbstractMethodError: net.minecraft.server.BaseMod.getVersion()Ljava/lang/String;

at net.minecraft.server.BaseMod.toString(BaseMod.java:51)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:183)

at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)

at net.minecraft.server.ModLoader.init(ModLoader.java:683)

at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

2012-02-25 00:02:44 [FINER] THROW

java.lang.RuntimeException: Exception occured in ModLoader

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)

at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)

at net.minecraft.server.ModLoader.init(ModLoader.java:683)

at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

Caused by: java.lang.AbstractMethodError: net.minecraft.server.BaseMod.getVersion()Ljava/lang/String;

at net.minecraft.server.BaseMod.toString(BaseMod.java:51)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:183)

... 6 more

2012-02-25 00:02:44 [sEVERE] Unexpected exception

java.lang.RuntimeException: Exception occured in ModLoader

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)

at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)

at net.minecraft.server.ModLoader.init(ModLoader.java:683)

at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

Caused by: java.lang.AbstractMethodError: net.minecraft.server.BaseMod.getVersion()Ljava/lang/String;

at net.minecraft.server.BaseMod.toString(BaseMod.java:51)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:183)

... 6 more

2012-02-25 00:02:44 [sEVERE] Unexpected exception

java.lang.RuntimeException: ModLoader has failed to initialize.

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)

at net.minecraft.server.ModLoader.init(ModLoader.java:715)

at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

Caused by: java.lang.RuntimeException: Exception occured in ModLoader

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)

at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)

at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)

at net.minecraft.server.ModLoader.init(ModLoader.java:683)

... 4 more

Caused by: java.lang.AbstractMethodError: net.minecraft.server.BaseMod.getVersion()Ljava/lang/String;

at net.minecraft.server.BaseMod.toString(BaseMod.java:51)

at net.minecraft.server.ModLoader.addMod(ModLoader.java:183)

... 6 more

This is my problem, I am aware of the error but not exactly familiar enough with it to know how to deal with it. Any help or guidance would be greatly appreciated. I did look through the other posts and topics already and couldn't find the answer so if I missed it then sorry.

[tabbek]

Are you running tekkit from a clean directory, or one you ran a server from previously?

I see "[1]buildcraft-2.2.11-b1.0.1R1-r2.zip" in yours, but in checking my server, I have "buildcraft-2.2.12-b1.1R3.zip".

It would appear that you have an old buildcraft.

[Stormhornet]

That was exactly it, I had missed the R3 when looking over late last night. It's the simple mistakes that get you. Thanks for the help.