1 lets fix the epoll problem.
it seems that was installed accidentally in the wrong place as its outside the MagicMirror folder

/home/philie/node_modules/epoll

do

cd ~
rm -rf node_modules/epoll

2 use my fork of the MMM-ModuleToggleButton module which fixes the install
https://github.com/sdetweil/MMM-ModuleToggleButton

remove the old module folder, clone my fork and npm install it

cd ~/MagicMirror/modules
rm -rf MMM-ModuleToggleButton
git clone https://github.com/sdetweil/MMM-ModuleToggleButton
cd MMM-ModuleToggleButton
npm install

let me know

the SYSTEM commands may need to use sudo…

apt update, upgrade, editing files in the /etc folder
because THOSE are owned by the system and should NOT be editable by a user
(they are protected on purpose)

the fact that the postinstall script failed is probably because you did sudo before and now the npm files are owned by root instead of user… (see line 1 above)

the electron-rebuild command has to be done from inside the module folder(togglebuttons), not the MagicMirror folder

philie@magicmirror:~/MagicMirror $ sudo npm install @electron/rebuild

added 88 packages, and removed 74 packages in 25s

220 packages are looking for funding
  run `npm fund` for details
philie@magicmirror:~/MagicMirror $ node_modules/.bin/electron-rebuild
✔ Rebuild Complete
philie@magicmirror:~/MagicMirror $

unfortunately the next issue is already on the dorstep:

message:14:59:24.366] [31m[ERROR][39m [31m(node:2306) UnhandledPromiseRejectionWarning: Error: The module '/home/philie/MagicMirror/modules/MMM-ModuleToggleButton/node_modules/epoll/build/Release/epoll.node'[39m,

So it looks like the thing about epoll is not yet solved…

do a
git pull
in the module folder
then
npm install again

cd MMM-ModuleToggleButton

Hey there, it’s me again with the same problem…

I did the MM Update to 2.28.0 by Script. Like usually some things are broken after and I did npm install and npm rebuild in the MM rootdirectory. It installed some stuff and looked good so far.

But the module MMM-ModuleToggleButton stays broken like after every update.
It has again something to do with electron, I tried to reinstall electron, but have no success…

The output:

philie@magicmirror:~/MagicMirror/modules $ git clone https://github.com/sdetweil/MMM-ModuleToggleButton
Cloning into 'MMM-ModuleToggleButton'...
remote: Enumerating objects: 44, done.
remote: Counting objects: 100% (4/4), done.
remote: Compressing objects: 100% (4/4), done.
remote: Total 44 (delta 0), reused 2 (delta 0), pack-reused 40
Receiving objects: 100% (44/44), 10.44 KiB | 1.30 MiB/s, done.
Resolving deltas: 100% (17/17), done.
philie@magicmirror:~/MagicMirror/modules $ cd MMM-ModuleToggleButton
philie@magicmirror:~/MagicMirror/modules/MMM-ModuleToggleButton $ npm install

> MMM-ModuleToggleButton@1.0.0 postinstall
> ./postinstall

/home/philie/MagicMirror/modules/MMM-ModuleToggleButton
./postinstall: line 8: ../../node_modules/.bin/electron-rebuild: No such file or directory
npm error code 127
npm error path /home/philie/MagicMirror/modules/MMM-ModuleToggleButton
npm error command failed
npm error command sh -c ./postinstall
npm error A complete log of this run can be found in: /home/philie/.npm/_logs/2024-07-14T11_29_32_616Z-debug-0.log
philie@magicmirror:~/MagicMirror/modules/MMM-ModuleToggleButton $

so, electron-rebuild in node_modules seems to be missing…

Indeed:

philie@magicmirror:~/MagicMirror/node_modules $ cd electron
philie@magicmirror:~/MagicMirror/node_modules/electron $ ll
total 1068
drwxr-xr-x   4 root   root     4096 Jul 14 13:20 .
drwxr-xr-x 679 philie philie  28672 Jul 14 13:10 ..
-rw-r--r--   1 root   root     8126 Jul 14 12:46 checksums.json
-rwxr-xr-x   1 root   root      612 Jul 14 12:46 cli.js
drwxr-xr-x   4 root   root     4096 Jul 14 12:48 dist
-rw-r--r--   1 root   root   972754 Jul 14 12:46 electron.d.ts
-rw-r--r--   1 root   root      659 Jul 14 12:46 index.js
-rw-r--r--   1 root   root     3178 Jul 14 12:46 install.js
-rw-r--r--   1 root   root     1096 Jul 14 12:46 LICENSE
drwxr-xr-x  70 root   root     4096 Jul 14 13:20 node_modules
-rw-r--r--   1 root   root      586 Jul 14 12:46 package.json
-rw-r--r--   1 root   root    31409 Jul 14 13:20 package-lock.json
-rw-r--r--   1 root   root        8 Jul 14 12:48 path.txt
-rw-r--r--   1 root   root     5370 Jul 14 12:46 README.md

I did already the steps from last time (therefore I answer in this old topic) but no luck this time.
What can I do?

Thank you,
philie

Very much appreciated what you are doing for this community! Thank you!

1 lets fix the epoll problem.
it seems that was installed accidentally in the wrong place as its outside the MagicMirror folder

/home/philie/node_modules/epoll

do

cd ~
rm -rf node_modules/epoll

2 use my fork of the MMM-ModuleToggleButton module which fixes the install
https://github.com/sdetweil/MMM-ModuleToggleButton

remove the old module folder, clone my fork and npm install it

cd ~/MagicMirror/modules
rm -rf MMM-ModuleToggleButton
git clone https://github.com/sdetweil/MMM-ModuleToggleButton
cd MMM-ModuleToggleButton
npm install

let me know

When i start MM after, I get still the same Error as before…

philie@magicmirror:~/MagicMirror $ cat somfile.txt

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

[15.02.2024 11:40.59.323] [LOG]   Starting MagicMirror: v2.26.0
[15.02.2024 11:40.59.334] [LOG]   Loading config ...
[15.02.2024 11:40.59.345] [DEBUG] config template file not exists, no envsubst
[15.02.2024 11:40.59.353] [LOG]   Loading module helpers ...
[15.02.2024 11:40.59.410] [ERROR] (node:1536) UnhandledPromiseRejectionWarning: Error: The module '/home/philie/node_modules/epoll/build/Release/epoll.node'
was compiled against a different Node.js version using
NODE_MODULE_VERSION 115. This version of Node.js requires
NODE_MODULE_VERSION 118. Please try re-compiling or re-installing
the module (for instance, using `npm rebuild` or `npm install`).
    at process.func [as dlopen] (node:electron/js2c/node_init:2:2107)
    at Object.<anonymous> (node:internal/modules/cjs/loader:1356:18)
    at Object.func [as .node] (node:electron/js2c/node_init:2:2107)
    at Module.load (node:internal/modules/cjs/loader:1126:32)
    at node:internal/modules/cjs/loader:967:12
    at Function._load (node:electron/js2c/node_init:2:13357)
    at Module.require (node:internal/modules/cjs/loader:1150:19)
    at require (node:internal/modules/cjs/helpers:121:18)
    at bindings (/home/philie/node_modules/bindings/bindings.js:112:48)
    at /home/philie/node_modules/epoll/epoll.js:7:31
    at Object.<anonymous> (/home/philie/node_modules/epoll/epoll.js:15:3)
    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/node_init:2:13357)
(Use `electron --trace-warnings ...` to show where the warning was created)
[15.02.2024 11:40.59.412] [ERROR] (node:1536) 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: 2)
/home/philie/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT

I won’t be able to get to it til later tonight
but if you look at my fork for MMM-Buttons
https://github.com/sdetweil/MMM-Buttons

I added a postinstall action in package json and added the postinstall script

you can run the postinstall without npm

./postinstall

Here is the demanded output:

philie@magicmirror:~/MagicMirror $ npm start > debugger_log.txt 2>&1

philie@magicmirror:~/MagicMirror $ cat debugger_log.txt

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

[14.02.2024 21:14.35.291] [LOG]   Starting MagicMirror: v2.26.0
[14.02.2024 21:14.35.303] [LOG]   Loading config ...
[14.02.2024 21:14.35.315] [DEBUG] config template file not exists, no envsubst
[14.02.2024 21:14.35.322] [LOG]   Loading module helpers ...
[14.02.2024 21:14.35.380] [ERROR] (node:20831) UnhandledPromiseRejectionWarning: Error: The module '/home/philie/node_modules/epoll/build/Release/epoll.node'
was compiled against a different Node.js version using
NODE_MODULE_VERSION 115. This version of Node.js requires
NODE_MODULE_VERSION 118. Please try re-compiling or re-installing
the module (for instance, using `npm rebuild` or `npm install`).
    at process.func [as dlopen] (node:electron/js2c/node_init:2:2107)
    at Object.<anonymous> (node:internal/modules/cjs/loader:1356:18)
    at Object.func [as .node] (node:electron/js2c/node_init:2:2107)
    at Module.load (node:internal/modules/cjs/loader:1126:32)
    at node:internal/modules/cjs/loader:967:12
    at Function._load (node:electron/js2c/node_init:2:13357)
    at Module.require (node:internal/modules/cjs/loader:1150:19)
    at require (node:internal/modules/cjs/helpers:121:18)
    at bindings (/home/philie/node_modules/bindings/bindings.js:112:48)
    at /home/philie/node_modules/epoll/epoll.js:7:31
    at Object.<anonymous> (/home/philie/node_modules/epoll/epoll.js:15:3)
    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/node_init:2:13357)
(Use `electron --trace-warnings ...` to show where the warning was created)
[14.02.2024 21:14.35.382] [ERROR] (node:20831) 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: 2)
/home/philie/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT

So this tells me diretly that the version uf node.js is not sufficent.

if I try to upgrade it using npm rebuild it looks like the following:

philie@magicmirror:~/MagicMirror/modules/MMM-ModuleToggleButton $ sudo npm rebuild
npm ERR! code 127
npm ERR! path /home/philie/MagicMirror/modules/MMM-ModuleToggleButton
npm ERR! command failed
npm ERR! command sh -c node_modules/.bin/electron-rebuild -e ../../node_modules/electron
npm ERR! sh: 1: node_modules/.bin/electron-rebuild: not found

npm ERR! A complete log of this run can be found in: /root/.npm/_logs/2024-02-14T20_16_30_701Z-debug-0.log

How can I upgrade from 115 to 118?

do this

pm2 stop all
cd ~/MagicMirror
npm start >somfile.txt 2>&1

wait 20 seconds
ctrl-q
then edit somefile.txt

after we go it then

pm2 status
pm2 start xx
xx is the number or name of the managed app