Upgrading macOS: Fix Invalid Active Developer Path

John John (304)
2 minutes

After upgrading to Catalina (and originally Mojave), I ran git pull and saw this terrible error.

xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

Fortunately, this is easy to fix. Read on.

Posted in these interests:
h/macos72 guides
xcode-select --install

To fix this, it seems that you'll need to explicitly agree to the license agreement.

If you end up with multiple versions of Xcode, you can select the version you want with:

xcode-select --switch /Applications/Xcode.app

Or if you want to run command line tools without Xcode:

xcode-select --switch /Library/Developer/CommandLineTools

See this article for more information.

Change your Mac's appearance to light, dark, or auto.
1 minute

One of the great features of macOS Yosemite and later is Mac user's ability to change the default Light appearance of Macs to Dark Mode.