Forge doesn't work

[CPFOS]

Alright. The mods I have installed are too many items, player API, arrows mod, modloader, morebows mod, minecraft forge and optifine. Unfortunately, my minecraft crashes when I try to load it. After isolating each mod, I have found that the problem was the minecraft forge. Here's the crash report *** MagicMinecraftLauncher 1.0.0 ***

java.lang.IncompatibleClassChangeError: Implementing class

    at java.lang.ClassLoader.defineClass1(Native Method)

    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$100(Unknown Source)

    at java.net.URLClassLoader$1.run(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 java.lang.ClassLoader.loadClass(Unknown Source)

    at magic.launcher.Launcher.main(Unknown Source)

 

I was using magic launcher at that time. Please inform this was caused by forge, and how to fix it if so. Thanks

[luacs1998]

Try MultiMC.

[LexManos]

Its caused by you doing things improperly

1) DO NOT install ModLoader

2) Make sure you're using the same version of MC that the Forge you're trying to install is using. This error is typically a MC/Forge version mismatch issue.