Remote debugging pycharm - vagrant - mappings don´t work!

Hi,

I have a remote interpreter on a vagrant machine with ubuntu 14.04. I connect to it through ssh. I do django development with pycharm 3.4.1.

Everything works fine, but when I try to debug, setting a breakpoint raises a screen where it says that mapping to remote file couldn´t be applied to remote file, as this can´t be found in project. It cames with three options: Edit settings, Auto-detect and Download source.
Auto-detect option does not work.

I also tried a few mappings, but mainly I map from django root in local to django root in remote. Directories where manage.py is located.

Please, could you give me any help on these mappings? I marked sources root directories and added them to pythonpath.

Thanks!