Electron NPM Error

[DeanoAus]

pi@Pi:~/MagicMirror $ sudo npm install
npm WARN lifecycle magicmirror@2.1.1~install: cannot run in wd %s %s (wd=%s) magicmirror@2.1.1 cd vendor && npm install /home/pi/MagicMirror
npm WARN lifecycle magicmirror@2.1.1~postinstall: cannot run in wd %s %s (wd=%s) magicmirror@2.1.1 sh installers/postinstall/postinstall.sh /home/pi/MagicMirror
npm WARN grunt-stylelint@0.8.0 requires a peer of stylelint@^7.8.0 but none was installed.
npm WARN stylelint-config-standard@16.0.0 requires a peer of stylelint@^7.8.0 but none was installed.
pi@Pi:~/MagicMirror $

[Nomis]

I ran into some trouble myself after installing the MMM-PIR-Sensor (the whole MM is not starting :D )
Mental Note: Remember to BackUp stable builds!

I don’t see the need of using sudo for npm install.
I’ve tried to replicate your error(took a while to undo the fixes):

npm list

npm ERR! extraneous: gulp-stylelint@3.9.0 /home/pi/MagicMirror/node_modules/gulp-stylelint
npm ERR! extraneous: stylelint@7.8.0 /home/pi/MagicMirror/node_modules/stylelint

npm purge

npm WARN grunt-stylelint@0.8.0 requires a peer of stylelint@^7.8.0 but none was installed.
npm WARN stylelint-config-standard@16.0.0 requires a peer of stylelint@^7.8.0 but none was installed.

npm rebuild
got this: coffee-script@1.10.0 should be installed with -g // npm WARN prefer global jsonlint@1.6.2 should be installed with -g

cd /MagicMirror/node_modules/
npm install  coffee-script@1.10.0 -g
npm install jsonlint@1.6.2 -g
npm install stylelint
npm install colorguard@1.2.0 -g

npm list (again yes)

you will get an error: npm ERR! extraneous: stylelint@7.10.1 /home/pi/MagicMirror/node_modules/stylelint because we instaleld manually.

Give it a try and let us know.

[DeanoAus]

Holy crap, that worked. I’m back in business!

1000 camels to you, good sir!

[Nomis]

@DeanoAus

You are welcome and glad it works!

[froinds]

They fixed the issue with extract-zip. Thanks.