What version of MacOS are you using? Please include the result of the following commands in your reply? echo $MESA_DIR echo $MESASDK_ROOT Willie > On Jan 3, 2016, at 10:39 AM, siddhant solanki <siddhantsolanki321 at gmail.com> wrote: > > <Screen Shot 2016-01-03 at 21.55.20.png>