Crash on starting

    the error that i get:


    Mods loaded: 1
    ModLoader Beta 1.7.3


    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 support@mojang.com.
    Please include a description of what you did when the error occured.




    --- BEGIN ERROR REPORT e9df3db --------
    Generated 9-9-11 13:39


    Minecraft: Minecraft Beta 1.7.3
    OS: Windows 7 (amd64) version 6.1
    Java: 1.6.0_26, Sun Microsystems Inc.
    VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
    LWJGL: 2.4.2
    OpenGL: ATI Radeon HD 5700 Series version 4.1.10834 Compatibility Profile Context, ATI Technologies Inc.


    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:267)
    at ModLoader.readFromClassPath(ModLoader.java:1104)
    at ModLoader.init(ModLoader.java:812)
    at ModLoader.AddAllRenderers(ModLoader.java:183)
    at th.<init>(th.java:60)
    at th.<clinit>(th.java:9)
    at net.minecraft.client.Minecraft.a(SourceFile:318)
    at net.minecraft.client.Minecraft.run(SourceFile:716)
    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 5499b021 ----------

    Quote from Marc010

    i think he haven´t installed
    Modloader Mp and
    Minecraft Forge (?)

    Precisely. "java.lang.NoClassDefFoundError: BaseModMp" That's obvious; ModloaderMP's base class.



    And MC Forge is probably in the "21 more" bit.



    Thankfully, you did figure out the problem, have fun on IC2!

    The 21 More bit means there 21 more lines of text in the error log


    anyway if u left out modloadermp i bet u would leave out mc forge. ;)