pi@octopi3 ~/.octoprint/logs $ tail octoprint.log
    description=profile_description)
  File "/usr/local/lib/python2.7/dist-packages/OctoPrint-1.2.0_dev_563_gdec9f47-py2.7.egg/octoprint/slicing/__init__.py", line 189, in save_profile
    self._save_profile_to_path(slicer, path, profile, overrides=overrides, allow_overwrite=allow_overwrite)
  File "/usr/local/lib/python2.7/dist-packages/OctoPrint-1.2.0_dev_563_gdec9f47-py2.7.egg/octoprint/slicing/__init__.py", line 276, in _save_profile_to_path
    self.get_slicer(slicer).save_slicer_profile(path, profile, allow_overwrite=allow_overwrite, overrides=overrides)
  File "/usr/local/lib/python2.7/dist-packages/OctoPrint-1.2.0_dev_563_gdec9f47-py2.7.egg/octoprint/plugins/cura/__init__.py", line 201, in save_slicer_profile
    self._save_profile(path, new_profile, allow_overwrite=allow_overwrite)
  File "/usr/local/lib/python2.7/dist-packages/OctoPrint-1.2.0_dev_563_gdec9f47-py2.7.egg/octoprint/plugins/cura/__init__.py", line 395, in _save_profile
    with open(path, "wb") as f:
TypeError: coercing to Unicode: need string or buffer, NoneType found
pi@octopi3 ~/.octoprint/logs $