@fabbr Did you ever get this working? I get the same errors;
npm WARN enoent ENOENT: no such file or directory, open '/home/pi/MagicMirror/modules/package.json'
npm WARN enoent ENOENT: no such file or directory, open '/home/pi/MagicMirror/modules/node_modules/node_helper/package.json'
npm WARN modules No description
npm WARN modules No repository field.
npm WARN modules No README data
npm WARN modules No license field.
@master117 Anything?