Why am I getting java action compilation error after updating the application?

Took an update then it is showing the java action compilation error while running the app...why so?
1 answers

It’s probably added a newer version of a .jar file with a different method signature.

The fix is usually to make sure you remove older versions of .jar files with the same name in your userlib folder.

If you are unsure which one, please post up the error you are getting and list of the files in your userlib and we can try to help more.