problem after switching rpi4

[raf]

i switched to the rpi4 today and copied the MagicMirror folder from the rpi3 to my windows pc with WinSCP then copied everything back to the rpi4 and now i get this error (what do i do)
the mirror does not start up

0 info it worked if it ends with ok
1 verbose cli [ '/usr/bin/node', '/usr/bin/npm', 'start' ]
2 info using npm@6.14.8
3 info using node@v10.23.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle magicmirror@2.13.0~prestart: magicmirror@2.13.0
6 info lifecycle magicmirror@2.13.0~start: magicmirror@2.13.0
7 verbose lifecycle magicmirror@2.13.0~start: unsafe-perm in lifecycle true
8 verbose lifecycle magicmirror@2.13.0~start: PATH: /usr/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/home/pi/MagicMirror/node_modules/.bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games
9 verbose lifecycle magicmirror@2.13.0~start: CWD: /home/pi/MagicMirror
10 silly lifecycle magicmirror@2.13.0~start: Args: [ '-c',
10 silly lifecycle   'DISPLAY="${DISPLAY:=:0}" ./node_modules/.bin/electron js/electron.js' ]
11 silly lifecycle magicmirror@2.13.0~start: Returned: code: 126  signal: null
12 info lifecycle magicmirror@2.13.0~start: Failed to exec start script
13 verbose stack Error: magicmirror@2.13.0 start: `DISPLAY="${DISPLAY:=:0}" ./node_modules/.bin/electron js/electron.js`
13 verbose stack Exit status 126
13 verbose stack     at EventEmitter.<anonymous> (/usr/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:198:13)
13 verbose stack     at ChildProcess.<anonymous> (/usr/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:198:13)
13 verbose stack     at maybeClose (internal/child_process.js:982:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid magicmirror@2.13.0
15 verbose cwd /home/pi/MagicMirror
16 verbose Linux 5.4.72-v7l+
17 verbose argv "/usr/bin/node" "/usr/bin/npm" "start"
18 verbose node v10.23.0
19 verbose npm  v6.14.8
20 error code ELIFECYCLE
21 error errno 126
22 error magicmirror@2.13.0 start: `DISPLAY="${DISPLAY:=:0}" ./node_modules/.bin/electron js/electron.js`
22 error Exit status 126
23 error Failed at the magicmirror@2.13.0 start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 126, true ]

[sdetweil]

@raf do

cd ~/MagicMirror
rm -rf node_modules
npm install --only=prod

then try to restart mm
if u have extra modules u may need to do npm install in their folders…

u should have use zip or tar to collect all the files, copied that bundle
then restored on pi4

[raf]

@sdetweil

it works back, i reinstalled the mirror and copied the modules folder back from the win pc to the pi and restarted the config.js and it worked