Uncaught ReferenceErrors: WLJQ is not defined, WL is not defined

[wwsun]

This problem actually happens a lot and it is actually really frustrating. Sometimes everything will be working for awhile and out of nowhere, this lovely error pops up. Something you can do instead (which has worked for me consistently) is:

1. In Eclipse, go to Project -> Clean ...
2. Select clean selected project checkbox, and select your Project
3. Hit ok

I would try that first and see what it does. If not, you can do the trusted method of removing and re-importing.