Okay, so I'm trying to install flan's mod, but every time I install forge my minecraft refuses to run, this has been going on for months to the point where I've just given up trying. Every time I copy the files from the Forge .rar to my .minecraft .rar folder, I get this error message:
*** MagicMinecraftLauncher 1.0.0 ***
java.lang.SecurityException: Invalid signature file digest for Manifest main attributes
at sun.security.util.SignatureFileVerifier.processImpl(Unknown Source)
at sun.security.util.SignatureFileVerifier.process(Unknown Source)
at java.util.jar.JarVerifier.processEntry(Unknown Source)
at java.util.jar.JarVerifier.update(Unknown Source)
at java.util.jar.JarFile.initializeVerifier(Unknown Source)
at java.util.jar.JarFile.getInputStream(Unknown Source)
at sun.misc.URLClassPath$JarLoader$1.getInputStream(Unknown Source)
at magic.launcher.r.getInputStream(Unknown Source)
at sun.misc.Resource.cachedInputStream(Unknown Source)
at sun.misc.Resource.getByteBuffer(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.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)
even without deleting the META-INF folder, it does the same thing after I do delete the META-INF. Also when not using magic launcher, it just goes to the updating screen, reaches almost all the way across the loading bar, and says "Done Loading" but doesn't move any further. Help please.