Android: tests after OS reinstall?

Question

Android

I wrote myself tests, everything was fine, fine.
The other day there was a need to reinstall the OS, after which a strange thing happened to the project.
When you open the project structure in the form of Android, they - tests - are not displayed at all, and when you simply open the folder structure, the tests are displayed with this icon and do not allow themselves to be launched.

Former OS: Ubuntu 14.04
New OS: Same Ubuntu 14.04
The project was synced via Dropbox, so nothing really changed.
Perhaps the trouble with the studio itself.
Are there any options?