Traceback (most recent call last):


 "/usr/src/app/homeassistant/helpers/entity_platform.py", line 126, in _async_setup_platform

SLOW_SETUP_MAX_WAIT, loop=hass.loop)


 "/usr/local/lib/python3.7/asyncio/tasks.py", line 416, in wait_for

return fut.result()


 "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run

result = self.fn(*self.args, **self.kwargs)


 "/usr/src/app/homeassistant/components/caldav/calendar.py", line 55, in setup_platform

calendars = client.principal().calendars()


 "/usr/local/lib/python3.7/site-packages/caldav/objects.py", line 417, in calendars

return self.calendar_home_set.calendars()


 "/usr/local/lib/python3.7/site-packages/caldav/objects.py", line 396, in calendar_home_set

'{urn:ietf:params:xml:ns:caldav}calendar-home-set']


 "/usr/local/lib/python3.7/site-packages/caldav/objects.py", line 405, in calendar_home_set

if (sanitized_url.hostname and
AttributeError: 'NoneType' object has no attribute 'hostname'

Traceback (most recent call last):


 "generate.py", line 42, in <module>

main()


 "generate.py", line 38, in main

f.write(composer.to_dockerfile())


 "/home/deepo/deepo/generator/core/composer.py", line 59, in to_dockerfile

]) for m in self.instances


 "/home/deepo/deepo/generator/modules/python.py", line 17, in build

if self.composer.ubuntu_ver.startswith("18."):
AttributeError: 'NoneType' object has no attribute 'startswith'