It only happened when the project directory was on a non-standard drive.
0.3.8
In the previous release, `fbs.cmdline.main()` (described in the [Manual](https://build-system.fman.io/manual/#custom-commands)) configured Python's global logging. This made it "impossible" for your own build script to configure this logging as well. To fix this, `fbs.cmdline.main()` no longer changes the global logging.
0.3.7
In particular, the commands `freeze` etc. now give helpful messages as to what the user might want to do next.
Another improvement was that `freeze` can now be called twice in a row without PyInstaller asking you to confirm "Do you want to overwrite the existing files?"