pi@raspberrypi:~/MagicMirror $ npm start Fatal error in …/deps/v8/src/snapshot/deserializer.cc, line 662 Check failed: false. Aborted pi@raspberrypi:~/MagicMirror $

If i google “deserializer.cc” i get a link to the git of chromium. so maybe your chromium installation is broken. Did u use the automatic installer or not? Maybe you should delete the MagicMirror folder in your home dictionary and try this if u use a raspberry pi: bash -c "$(curl -sL https://raw.githubusercontent.com/MichMich/MagicMirror/master/installers/raspberry.sh)" And u should read this carefully: https://github.com/MichMich/MagicMirror Aaaaaand u should edit your post as MadScientist said ;)