After update to 5.0.2 version of PyCharm, my custom classes and methods are not resolving so autocomplete is not working. This is the main reason that I buy and use PyCharm and I cannot use at the moment. I turned back to use Vim with Jedi at the moment.
I tried invalidate cache and restart but no luck.
Note: I just test that if I create new project, there is not any problem. But if I open existing project with version 5.0.2, all of them are unresolved.