[UPDATE – View updated solution at the bottom of the post.] So, you wanted to update homebrew with the command brew update but received a similar error below: Error: /usr/local must be writable! Simple fix is to run sudo chown -R $(whoami) /usr/local Your problem should now be fixed. If not, you might have ran into this issue that i’ve come across, too: Error: update-report should not be called directly! I fixed this by running […]