MMM-Canvas and MMM-Stocks not working

Gabe21

Hi! I’m new to the raspberry pi. I’m using the MMM-Pages to have 2 pages that the mirror cycles through. I installed the MMM-Canvas and MMM-Stocks to add to the second page. When I try to launch the mirror it shows a black screen and on the tab it shows “Electron”. When I comment out both the Canvas and Stocks module it works fine. What am I doing wrong?

Thank you in advance!

sdetweil

@gabe21 https://forum.magicmirror.builders/topic/15778/fix-for-black-screen-in-2-16-and-later

probably

Gabe21

@sdetweil I’m doing it and I get this:

pi@raspberrypi:~ $ npm init -y
Wrote to /home/pi/package.json:

{
  "name": "pi",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}


pi@raspberrypi:~ $ npm install MMM-Canvas
npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/MMM-Canvas - Not found
npm ERR! 404 
npm ERR! 404  'MMM-Canvas@latest' is not in the npm registry.
npm ERR! 404 Your package name is not valid, because 
npm ERR! 404  1. name can no longer contain capital letters
npm ERR! 404 
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/pi/.npm/_logs/2021-10-31T18_07_21_746Z-debug.log

sdetweil

@gabe21 in the module folder that is causing the problem

cd MagicMirror/modules/MMM-Canvas
THEN the commands

from the text of the post

to fix this you need to install the library in the module folder

Gabe21

@gabe21 I tried that it is says

pi@raspberrypi:~/MagicMirror/modules/MMM-Canvas $ npm init -y
Wrote to /home/pi/MagicMirror/modules/MMM-Canvas/package.json:

{
  "name": "MMM-Canvas",
  "version": "1.0.0",
  "description": "This is a module for `MagicMirror²` which displays upcoming assignments from the Canvas LMS. The Canvas LMS is used by colleges, universities and other institutions for coursework.",
  "main": "MMM-Canvas.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/chase-cromwell/MMM-Canvas.git"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/chase-cromwell/MMM-Canvas/issues"
  },
  "homepage": "https://github.com/chase-cromwell/MMM-Canvas#readme"
}


pi@raspberrypi:~/MagicMirror/modules/MMM-Canvas $ npm install MMM-Canvas
npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/MMM-Canvas - Not found
npm ERR! 404 
npm ERR! 404  'MMM-Canvas@latest' is not in the npm registry.
npm ERR! 404 Your package name is not valid, because 
npm ERR! 404  1. name can no longer contain capital letters
npm ERR! 404 
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/pi/.npm/_logs/2021-10-31T18_19_03_220Z-debug.log
pi@raspberrypi:~/MagicMirror/modules/MMM-Canvas $

sdetweil

@gabe21 after you do the npm init

then u need to add the missing library

request
valid-url
or whatever

npm install XXX

where XXX is one of the above, as needed by the messages shown in the MM startup messages

Gabe21

@sdetweil Sorry I’m pretty new to the raspberry-where would I get the missing library from?

sdetweil

@gabe21 said in MMM-Canvas and MMM-Stocks not working:

where would I get the missing library from?

the messages output by MM starting up

you either did

npm start
and it spews out messages

or you used pm2
and it captures the messages
pm2 logs --lines=??? (default 15) will show the messages

you are looking for

cannot find module xxx

Gabe21

@sdetweil

code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/pi/MagicMirror/modules/MMM-Canvas/node_helper.js',
    '/home/pi/MagicMirror/js/app.js',
    '/home/pi/MagicMirror/js/electron.js',
    '/code: 'MODULE_NOT_FOUND',
      requireStack: [
        '/home/pi/MagicMirror/modules/MMM-Canvas/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',

So

npm install /home/pi/MagicMirror/modules/MMM-Canvas/node_helper.js

?

sdetweil

@gabe21 no… up further in the messages

before

code: 'MODULE_NOT_FOUND',
  requireStack: [