I have tried several installation options (Magic Launcher, MCmulti, Manual Installation), but I always get a crash when I install ModLoader with Forge (in this order), without any other mods, minecraft crashes and shows this error Log:

 

--- BEGIN ERROR REPORT 745d8303 --------
Generated 28-04-2012 11:43

Minecraft: Minecraft 1.2.5
OS: Mac OS X (x86_64) version 10.7.3
Java: 1.6.0_31, Apple Inc.
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
LWJGL: 2.8.3
OpenGL: NVIDIA GeForce 320M OpenGL Engine version 2.1 NVIDIA-7.18.11, NVIDIA Corporation

java.lang.NoClassDefFoundError: buildcraft/silicon/TileLaser
at BuildCraftFactory.initialize(BuildCraftFactory.java:140)
at mod_BuildCraftFactory.modsLoaded(mod_BuildCraftFactory.java:36)
at ModLoader.init(ModLoader.java:899)
at ModLoader.addAllRenderers(ModLoader.java:189)
at ahu.<init>(ahu.java:77)
at ahu.<clinit>(ahu.java:
at net.minecraft.client.Minecraft.a(Minecraft.java:394)
at net.minecraft.client.Minecraft.run(Minecraft.java:732)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.ClassNotFoundException: buildcraft.silicon.TileLaser
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 9 more
--- END ERROR REPORT f5a4a760 ----------

What forge version du you have?

v 3.1.2.94

 

I' using a mac, if it matters

<the error massage show that buildcraft is in the mods file, or in the jar.

 

A few bit it's like a wrong modloader or a wrong buildcraft.

 

At the moment i only see in your minecraftfile is buildcraft factory as zip or installed.

Removed BuildCraft. Minecraft started alright, but crashed when creating world. Modloader is for the correct version (1.2.5)

 

Here's the error log:

 

--- BEGIN ERROR REPORT 17ee7e83 --------
Generated 28-04-2012 12:36

Minecraft: Minecraft 1.2.5
OS: Mac OS X (x86_64) version 10.7.3
Java: 1.6.0_31, Apple Inc.
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
LWJGL: 2.8.3
OpenGL: NVIDIA GeForce 320M OpenGL Engine version 2.1 NVIDIA-7.18.11, NVIDIA Corporation

java.lang.NoSuchMethodError: alb.getSaveFolder()Ljava/lang/String;
at aia.a(AnvilSaveHandler.java:21)
at .d(World.java:362)
at .<init>(World.java:345)
at .<init>(World.java:277)
at net.minecraft.client.Minecraft.a(Minecraft.java:1930)
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:1561)
at net.minecraft.client.Minecraft.x(Minecraft.java:819)
at net.minecraft.client.Minecraft.run(Minecraft.java:747)
at java.lang.Thread.run(Thread.java:680)
--- END ERROR REPORT 81978fb2 ----------

Ok now, i for me it says that a main data got dmg.

 

And their i can not help to fix it fine. But for theadmin it help to understand a bit minecraft better.

 

Do you remember the order of installation?

because of a little data the complete minecraft are able to crash.

i think you need to remod it again.

i had started to expand any mods in modfile , only which are changing mainclasses i passed in the jar. so in order

modloader

modloadermp

forge

turbomodel

and audiomod.

 

I hope it will works by you after remod your jar.

 

 

It worked. Installing BC now

do tht, easyer to see where can be a other problem is to take the mod file^^, most one says throw them in jar, but it isn't needed the most time:)

BuildCraft files (which goes in the mods folder) are in the correct place. However, the Energy, Factory and Silicon ones don't work. All of them with the original names. What Can it be? I'm using MultiMC beta 3.1.

I don't care about diffrent launcher, but i had testes 3.1.5 at the moment self(to see what happens)

 

and it will be a few crazy but by me it still works.

I hadn't test the working, but i  can enter my world and not error msg.

 

 

so i think maybe it will be a launcher problem.

 

Why you don't start offline, if you only use the singlepalyer version?

 

i had passed all parts of buildcraft in the mods file. So i can not help realy, because by me it works

There seems to be an error in the log. Can you "translate"?

 

28/Abr/2012 14:45:39 forge.ForgeHooks <clinit>
INFO: MinecraftForge v3.1.2.94 Initialized

Porblem is, at this moment it isn't a error msg

 

is their anymore text or thats all of the log?

 

This says only forge is started.

I have just tried it on MagicLauncher. Same error.

than i don't know.

 

i could only pass you my mainmodded jar.

That probably wont work... 

 

The BC mods get on the mods folder and get installed by ML

the last one what i could do is try my jar data, if it won't work too, one of the modder have to take a look.

 

I hope it will work, i passed you the link via pm

Got it working finally. Apparently, just reinstalled all mods and BC and it worked. Thanks for everything.

Anyone up for making a default set of obvious troubleshooting steps like that on the wiki that we can link to?

What exactly do you want in it?

Usual errors, BaseModMP, class errors like the above, basic troubleshooting steps like starting completely fresh 'and' redownloading everything, how to get a stack trace, etc...  Anything to reduce the 'usual' support threads.

I've been working here. Does it look OK?

I've been working here. Does it look OK?

Ooo, that is a good start, very cool!

 

EDIT:  I might factor it out soon into templates so each error can be on there while having its own page for discussion.

I'm also thinking about making a different page for each file included in mcforge and show things like examples of how to use it in a mod and stuff like that which would be linked from pages like this: http://minecraftforge.net/wiki/Minecraft_Forge.

I'm also thinking about making a different page for each file included in mcforge and show things like examples of how to use it in a mod and stuff like that which would be linked from pages like this: http://minecraftforge.net/wiki/Minecraft_Forge.

Oh yes, was definitely thinking the same.  And it is trivial to include all/parts of a page in another page automatically too.