Hmm, The upgrade did not go smoothly and my platformio installation in bonked!!
I have tried removing the .atom and .platformio folders in the user directory.
I have tried uninstalling and reinstalling the platformio package from the website.
I have even tried the “apm remove platformio-ide && apm install platformio-ide”.
In all the cases, the installation completes, I see the platformio menu bar and I am even able to open the projects.
But I am unable to build any project - keyboard shortcuts or menu options. The platformio terminal does not showup.
Same problem, update failed and platformio-ide is broken, now i can’t uninstall.
Also on Mac Sierra. Generally I have problems with updating, because the ‘sudo’ is
missing in pio commands, that is the most times necessary to make a proper update.
mac-os sierra, atom .1.12.6
I manually deleted platformio-ide and reinstalled over the atom package manager, now it works.
I have installed a beta of pio before (3.2b2) maybe this causes the problem?
The restart was not the problem. After updating, the platformio-ide was broken and no restart help,
it was also impossible to delete platformio-ide from the package manager. Maybe the problem is
the downgrade from 3.2b2 back to 3.1 and a needed sudo command for changing the version.
I saw the restart issue when making the new installation after deleting.
in Toolbar and follow to 
