MagicMirror cannot start (UnhandledPromiseRejectionWarning)

[Klinge]

Hi,

my MagicMirror cannot start. If I enter in the MagicMirror folder DISPLAY=:0 npm start, the start process stop with the following error message

pi@raspberrypi:~/MagicMirror $ DISPLAY=:0 npm start

> magicmirror@2.26.0 start
> DISPLAY="${DISPLAY:=:0}" ./node_modules/.bin/electron js/electron.js

[02.01.2024 13:42.14.476] [LOG]   Starting MagicMirror: v2.26.0
[02.01.2024 13:42.14.486] [LOG]   Loading config ...
[02.01.2024 13:42.14.494] [DEBUG] config template file not exists, no envsubst
[02.01.2024 13:42.14.505] [LOG]   Loading module helpers ...
[02.01.2024 13:42.14.507] [LOG]   No helper found for module: alert.
[02.01.2024 13:42.14.572] [ERROR] (node:1277) UnhandledPromiseRejectionWarning: Error: Cannot find module 'command-exists'
Require stack:
- /home/pi/MagicMirror/modules/default/updatenotification/update_helper.js
- /home/pi/MagicMirror/modules/default/updatenotification/node_helper.js
- /home/pi/MagicMirror/js/app.js
- /home/pi/MagicMirror/js/electron.js
- /home/pi/MagicMirror/node_modules/electron/dist/resources/default_app.asar/main.js
-
    at node:internal/modules/cjs/loader:1084:15
    at Function.<anonymous> (node:electron/js2c/browser_init:2:117419)
    at Module._resolveFilename (/home/pi/MagicMirror/node_modules/module-alias/index.js:49:29)
    at node:internal/modules/cjs/loader:929:27
    at Function._load (node:electron/js2c/asar_bundle:2:13327)
    at Module.require (node:internal/modules/cjs/loader:1150:19)
    at require (node:internal/modules/cjs/helpers:110:18)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/default/updatenotification/update_helper.js:3:23)
    at Module._compile (node:internal/modules/cjs/loader:1271:14)
    at Object..js (node:internal/modules/cjs/loader:1326:10)
    at Module.load (node:internal/modules/cjs/loader:1126:32)
    at node:internal/modules/cjs/loader:967:12
    at Function._load (node:electron/js2c/asar_bundle:2:13327)
    at Module.require (node:internal/modules/cjs/loader:1150:19)
    at require (node:internal/modules/cjs/helpers:110:18)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/default/updatenotification/node_helper.js:4:22)
(Use `electron --trace-warnings ...` to show where the warning was created)
[02.01.2024 13:42.14.573] [ERROR] (node:1277) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
[1277:0102/134215.069790:ERROR:object_proxy.cc(590)] Failed to call method: org.freedesktop.portal.Settings.Read: object_path= /org/freedesktop/portal/desktop: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.portal.Desktop was not provided by any .service files
^C/home/pi/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT

At the beginning from the start process, the Log write that the config.js file doesn´t exists. But that is not correct. The config file exists in the /config folder.

It would be really nice, if you someone can help me.

Thank you in advance.

Best regards
Klinge

[sdetweil]

@Klinge please do

cd ~/MagicMirror
npm install

[Klinge]

@sdetweil Hi Sam, now it works. Thank you for your advice :-)

[sdetweil]

@Klinge thanks… did you do the two part command originally

git pull && npm run install-mm

trying to see if the expression failed

[Steff]

Encountering the same problem, however npm install throws an error message:

npm ERR! code EBADENGINE
npm ERR! engine Unsupported engine
npm ERR! engine Not compatible with your version of node/npm: magicmirror@2.26.0
npm ERR! notsup Not compatible with your version of node/npm: magicmirror@2.26.0
npm ERR! notsup Required: {"node":">=18"}
npm ERR! notsup Actual:   {"npm":"8.19.4","node":"v16.20.2"}

The “normal” update of my raspi via sudo apt- update & upgrade did not bring any changes, I had to update the node version manually:

Update node version
Please do not forget to log-off / log-on after nvm installation

This helped now the npm install did run through and my magic mirror start again.

Hope this is helpful for others who are encountering the same problem…

[sdetweil]

@Steff use my install/upgrade scripts. they do all this work