help!!

[전상민]

i getting next error! i don't know what is problem please help me   ========================================== Exception in thread "main" java.util.zip.ZipException: at java.util.zip.ZipFile.open<Nvtive Method> at java.util.zip.ZipFile.<init><Unknown Source> at java.util.jar.JarFile.<init><Unknown Source> at java.util.jar.JarFile.<init><Unknown Source> ======================================