I’m with the same problem, even running npm install into /vendor I continue with the same error

Error: ENOENT: no such file or directory, lstat '/home/pi/MagicMirror/node_modules/electron/dist/resources'
    at Error (native)
npm ERR! Linux 4.9.25-v7+
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install"
npm ERR! node v6.10.2
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE

npm ERR! electron@1.6.6 postinstall: `node install.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the electron@1.6.6 postinstall script 'node install.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the electron package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node install.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs electron
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls electron
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/pi/MagicMirror/npm-debug.log

Any ideia?