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Exception in thread "main" java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/Main
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.Main
at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Caused by: java.util.zip.ZipException: invalid LOC header (bad signature)
at java.util.zip.ZipFile.read(Native Method)
at java.util.zip.ZipFile.access$1200(ZipFile.java:31)
at java.util.zip.ZipFile$ZipFileInputStream.read(ZipFile.java:460)
at java.util.zip.ZipFile$1.fill(ZipFile.java:243)
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:141)
at sun.misc.Resource.getBytes(Resource.java:108)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:257)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
... 5 more
Could not find the main class: org.bukkit.craftbukkit.Main. Program will exit.