I upgraded MM today to version 2.4.1 on my raspberry Pi 2. I did the npm install but now getting the following error:

0 info it worked if it ends with ok
1 verbose cli [ ‘/usr/bin/nodejs’, ‘/usr/bin/npm’, ‘start’ ]
2 info using npm@1.4.21
3 info using node@v4.8.2
4 verbose run-script [ ‘prestart’, ‘start’, ‘poststart’ ]
5 info prestart magicmirror@2.4.1
6 info start magicmirror@2.4.1
7 verbose unsafe-perm in lifecycle true
8 info magicmirror@2.4.1 Failed to exec start script
9 error magicmirror@2.4.1 start: sh run-start.sh
9 error Exit status 127
10 error Failed at the magicmirror@2.4.1 start script.
10 error This is most likely a problem with the magicmirror package,
10 error not with npm itself.
10 error Tell the author that this fails on your system:
10 error sh run-start.sh
10 error You can get their info via:
10 error npm owner ls magicmirror
10 error There is likely additional logging output above.
11 error System Linux 4.14.52-v7+
12 error command “/usr/bin/nodejs” “/usr/bin/npm” “start”
13 error cwd /home/pi/MagicMirror
14 error node -v v4.8.2
15 error npm -v 1.4.21
16 error code ELIFECYCLE
17 verbose exit [ 1, true ]