Minecraft Forums

Dweller_Benthos: Thank you for the help, it has worked! As for all other unfortunate people's, I reccomend people to do the same as dweller reccomened to me.

Ok, I have dled this mod before and have sucessfuly made it run. However, now when I dl this again, and do it all over again, it breaks down and I have proof of this.

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

Minecraft has stopped running because it encountered a problem.

If you wish to report this, please copy this entire text and email it to [email protected].
Please include a description of what you did when the error occured.



--- BEGIN ERROR REPORT 9c4f49b2 --------
Generated 1/16/12 9:33 PM

Minecraft: Minecraft 1.1
OS: Windows 7 (amd64) version 6.1
Java: 1.6.0_24, Sun Microsystems Inc.
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: Intel(R) HD Graphics Family version 3.0.0 - Build 8.15.10.2291, Intel

java.lang.NoClassDefFoundError: BaseModMp
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at ModLoader.addMod(ModLoader.java:264)
at ModLoader.readFromModFolder(ModLoader.java:1321)
at ModLoader.init(ModLoader.java:820)
at ModLoader.AddAllRenderers(ModLoader.java:189)
at afq.<init>(afq.java:80)
at afq.<clinit>(afq.java:9)
at net.minecraft.client.Minecraft.a(SourceFile:265)
at net.minecraft.client.Minecraft.run(SourceFile:648)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: BaseModMp
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 21 more
--- END ERROR REPORT 2ce2b72b ----------

and the only mod I have atm is Single player commands, which is 1.1 updated.

I await any response from you guys...