[SOLVED]JarSplice "Jar creation failed due to the following exception" Problem

Newbie & Debugging Questions
#1

When i try to make a fat jar file, i take this Error.

Jar creation failed due to the following exception: duplicate entry: META_INF/MANIFEST.MF

What is the problem? I can’t understand that.

#2

Make sure you don’t already have a manifest in the jar that you import.

#3

Try deleting you manifest file and build it again, you might have 2 manifest files in your program. also manually delete your old jar file of your app.

#4

Thank you. I’m solved that problem with i deleted all manifest files and i remove lwjgl_debug, lwjgl_util files and it’s work.