Have the same error too as below. Also ran into a 404: HTTP error on first restart due to some component not able to install. On second restart, all came back fine. Is the below error critical?
Building wheels for collected packages: aiohttp
Running setup.py bdist_wheel for aiohttp ... error
Complete output from command /srv/homeassistant/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-jpfysjo7/aiohttp/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpqs7xcqk1pip-wheel- --python-tag cp35:
usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: -c --help [cmd1 cmd2 ...]
or: -c --help-commands
or: -c cmd --help
error: invalid command 'bdist_wheel'
----------------------------------------
Failed building wheel for aiohttp
Running setup.py clean for aiohttp
Failed to build aiohttp