I had docker working and then I went and upgraded the version by downloading the latest Docker CE dmg from docker.com and installing over the old version. Since then I have been unable to get the Docker app to start.
Double-clicking it would make a spinning beach ball of death appear when hovering over the tray area where the docker icon should open. After a few seconds the activity monitor would list Docker as "not responding".
Attempting to start the app via the command line as sudo gives the following error:
/Applications/Docker.app/Contents/MacOS: sudo ./Docker
json error: Error Domain=NSCocoaErrorDomain Code=3840 "No value." UserInfo={NSDebugDescription=No value.}
kern.hv_support: 1
And the process still hangs.
Mac OS Info
El Capitan
10.11.6 (15G1217)
Latest Docker version at the time:
Version 17.03.0-ce-mac2 (15654)
Channel: stable
I've tried uninstalling and reinstalling the docker app. I could not use a Factory Reset on Docker since it never fully started. I have tried uninstalling, rebooting, and reinstalling. I have tried to removing the ~/Library/Containers/com.docker* directories. I've removed all of the docker links in /usr/local/bin. I've tried going back to older versions of Docker such as 1.12.6.14937. I've tried the edge version of the latest Docker.
I finally managed to get Docker working with the latest version of Docker by doing the following:
com.docker.vmnetd entry. << this seems to be the key thing I hadn't done before!!!