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