EXT-Governor have no rebuild script or maybe you invent it 😉
In all case, the response is inside the wiki (ÈXT-Detector and EXT-Pir) , EXT-Alert will says what you have to do, console log of MagicMirror will display what you have to do too
3 different ways to solve/display an error 🙂
so @bigjojo have right
Perfect if solved 🙂
Happy use