Had no problems using Tor Browser for 4 years or so then all of a sudden 'could not connect to Tor control port'. El Capitan 10.11.6 - Tor 6.05.
I've tried deleting and re-installing Tor, turning off Firewall, running virus checks, disk maintenance, Mac Clean etc still same error.
The one noticeable things is a slight delay as Tor starts.
I can't paste the Tor log because it doesn't generate one - reads '(0) logs ready to be copied to clipboard'. If I click 'settings' I just get 'Waiting for Tor to start' ...then 'Could not connect to Tor control port' again.
I have not recently installed any new software of system updates so no real change in the environment - any ideas would be greatly appreciated