Wonderful java error.

I've tried just about everything at this point. This pops up when i run the start.bat

Exception in thread "main" java.lang.NoClassDefFoundError: joptsimple/OptionSpec
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:44)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31)
Caused by: java.lang.ClassNotFoundException: joptsimple.OptionSpec
        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)
        ... 4 more

Edited October 5, 20178 yr by Arcisbad