“Error: Xcode alone is not sufficient on Sierra.”
Posted by jpluimers on 2019/10/21
Once in a while, despite having Xcode, the Xcode command-line tools, homebrew and ruby installed on your Mac OS X / Mac OS / whatever it is called now, you get this on the console:
Error: Xcode alone is not sufficient on Sierra.
Install the Command Line Tools:
xcode-select --install
Running the commandxcode-select --install makes it even more confusing:
It’s probably Apple trying to tell you “Xcode is out of date”, but they should certainly show that in a more obvious way and redirect to the App Store that does show it:
–jeroen
The Wiert Corner - irregular stream of stuff 
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