I get this error in Android Studio:
Can\'t start Git: /usr/bin/git Probably the path to Git executable is not valid.
I have this issue when having two Xcode (ver.7 and ver.8) apps installed in my Mac OS Sierra.
What I do is simply open the Xcode 8, go to Preferences, select Locations in tab, and set the Command Lines Tools to Xcode 8.0.