[Ifeffit] Mac installation error "Failed to build demeter"

Hi all, I'm getting this error message after entering the command "install xorg-server demeter": [image: Screen Shot 2019-12-02 at 9.52.07 AM.png] Has anyone encountered this issue when installing the program on a Mac? This is what the end of the suggested log files reads: [image: Screen Shot 2019-12-05 at 8.06.09 AM.png] Thanks, Rebecca