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.

If you're using Magic Launcher, why are you installing the mods manually?

I just used Magic Launcher to install it, same error code, can someone PLEASE actually help?

1. open the normal minecraft launcher

2. click "force update" in options

3. launch minecraft and close it

4. download the L-A-T-E-S-T UNIVERSAL forge

5. add the universal forge into magic launcher

6. try it out

 

DO NOT ADD ANY ADDITIONAL STEPS

this is exactly what I have been doing, both manually and through magic launcher, I'm not an idiot, I've been using Flans mod since it came out, but the new versions that require forge have never worked for me. So can someone please ACTUALLY help, and not just tell me how to install something I've installed a million times without problems.

DO.NOT.PUT.THE.MODS.IN.THE.MINECRAFT.JAR.PLEASE

Run the batch file found in the Rules and EAQ. Then post the output here.

 

Starting Minecraft...

 

Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version n

umber in .class file

        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.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 java.lang.ClassLoader.loadClassInternal(Unknown Source)

 

Finished session

 

This is the error report from the batch file, pretty much the same thing.

update your java