TypeError: expected str, bytes or os.PathLike object, not NoneType
Starting trytond --dev without setting a config file or environment variable
raises error:
Traceback (most recent call last):
File "/home/uspallek/fab_venv/projects/upstream50/.dev_site_packages/bin/trytond", line 7, in
exec(compile(f.read(), __file__, 'exec'))
File "/home/uspallek/fab_venv/projects/upstream50/trytond/bin/trytond", line 48, in
use_reloader=options.dev)
File "/nix/store/ix49pkmjylj1gll35yvrg6h38fpyxc07-python3.6-Werkzeug-0.14.1/lib/python3.6/site-packages/werkzeug/serving.py", line 812, in run_simple
reloader_type)
File "/nix/store/ix49pkmjylj1gll35yvrg6h38fpyxc07-python3.6-Werkzeug-0.14.1/lib/python3.6/site-packages/werkzeug/_reloader.py", line 266, in run_with_reloader
reloader = reloader_loopsreloader_type
File "/nix/store/ix49pkmjylj1gll35yvrg6h38fpyxc07-python3.6-Werkzeug-0.14.1/lib/python3.6/site-packages/werkzeug/_reloader.py", line 107, in __init__
for x in extra_files or ())
File "/nix/store/ix49pkmjylj1gll35yvrg6h38fpyxc07-python3.6-Werkzeug-0.14.1/lib/python3.6/site-packages/werkzeug/_reloader.py", line 107, in
for x in extra_files or ())
File "/nix/store/hy65mn4wjswqih75gfr6g4q3xgqdm325-python3-3.6.6/lib/python3.6/posixpath.py", line 371, in abspath
path = os.fspath(path)
TypeError: expected str, bytes or os.PathLike object, not NoneType