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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    [ERROR] _ is not defined

    Scheduled Pinned Locked Moved Solved Troubleshooting
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    • S Do not disturb
      sdetweil @sdetweil
      last edited by sdetweil

      @nowayto NEVER use sudo with any npm command

      the number in the pm2 status 4311 is the number of restarts

      youve got a mess

      now we HAVE to use sudo to undo it

      cd ~/MagicMirror 
      sudo rm -rf node_modules
      cd fonts
      sudo rm -rf node_modules
      cd ..\vendor
      sudo rm-rf node_modules
      cd ..
      

      lets see about node

      which node
      n 
      q to quit
      nvm 
      

      dont do anything else til we figure out the nodejs problem

      Sam

      How to add modules

      learning how to use browser developers window for css changes

      N 1 Reply Last reply Reply Quote 0
      • N Offline
        nowayto @sdetweil
        last edited by

        @sdetweil I’m sorry :(

        I did it what you suggest and config:check gave me a module error again. Different than one before

        npm run config:check

        magicmirror@2.31.0 config:check
        node js/check_config.js

        node:internal/modules/cjs/loader:1404
        throw err;
        ^

        Error: Cannot find module ‘ajv’
        Require stack:

        After “require stack” there are other lines, if you need it, tell me.
        Thanks

        S 1 Reply Last reply Reply Quote 0
        • S Do not disturb
          sdetweil @nowayto
          last edited by sdetweil

          @nowayto

          i said stop

          we need to fix nodejs so npm install will work

          node -v

          says something
          and npm install says node is different

          i am trying to figure out where node is installed and by who
          system, nvm or n

          you didn’t give me answers to the commands i provided

          Sam

          How to add modules

          learning how to use browser developers window for css changes

          N 1 Reply Last reply Reply Quote 0
          • N Offline
            nowayto @sdetweil
            last edited by

            @sdetweil

            which node gave me
            /home/MYMIRR/.nvm/versions/node/v22.15.0/bin/node

            n gave me
            node/20.18.1

            Use up/down arrow keys to select a version, return key to install, d to delete, q to quit

            nvm gave me

            Node Version Manager (v0.39.5)

            Note: refers to any version-like string nvm understands. This includes :

            • full or partial version numbers, starting with an optional “v” (0.10, v0.1.2 , v1)
            • default (built-in) aliases: node, stable, unstable, iojs, system
            • custom aliases you define with nvm alias foo

            followed by a lot of options

            S 1 Reply Last reply Reply Quote 0
            • S Do not disturb
              sdetweil @nowayto
              last edited by sdetweil

              @nowayto ok nvm and n do the same function but differently

              i use n in my scripts because it runs everywhere

              so lets turn off nvm

              nvm deactivate
              nvm unload
              cd ~
              rm -rf  .nvm
              

              now which node
              should find /usr/local/bin/node

              now we need n to get to node 22.14.0

              sudo n 22.14.0
              

              now node -v

              should return 22.14.0

              if so, do

              cd  ~/MagicMirror 
              npm install
              

              now MagicMirror should run

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              N 1 Reply Last reply Reply Quote 0
              • N Offline
                nowayto @sdetweil
                last edited by

                @sdetweil Thank you a lot Sam.

                I did everything but
                I have an [ERROR] _ is not defined

                magicmirror@2.31.0 start:x11
                DISPLAY=“${DISPLAY:=:0}” ./node_modules/.bin/electron js/electron.js

                [2025-05-11 15:39:26.429] [LOG] Starting MagicMirror: v2.31.0
                [2025-05-11 15:39:26.527] [LOG] Loading config …
                [2025-05-11 15:39:26.537] [LOG] config template file not exists, no envsubst
                [2025-05-11 15:39:28.154] [INFO] Checking config file /home/MYMIRR/MagicM irror/config/config.js …
                [2025-05-11 15:39:28.478] [INFO] Your configuration file doesn’t contain syntax errors :)
                [2025-05-11 15:39:28.482] [INFO] Checking modules structure configuration …
                [2025-05-11 15:39:28.793] [ERROR] _ is not defined

                S 1 Reply Last reply Reply Quote 0
                • S Do not disturb
                  sdetweil @nowayto
                  last edited by sdetweil

                  @nowayto so that sounds like the npm install failed again

                  do it again and show the output

                  Sam

                  How to add modules

                  learning how to use browser developers window for css changes

                  N 1 Reply Last reply Reply Quote 0
                  • N Offline
                    nowayto @sdetweil
                    last edited by

                    @sdetweil

                    installer didn’t failed, but this is the result now

                    npm install

                    magicmirror@2.31.0 postinstall
                    npm run install-vendor && npm run install-fonts && echo "MagicMirror² installation finished successfully!
                    "

                    magicmirror@2.31.0 install-vendor
                    echo "Installing vendor files …
                    " && cd vendor && npm install --loglevel=error --no-audit --no-fund --no-update-notifier

                    Installing vendor files …

                    up to date in 7s

                    magicmirror@2.31.0 install-fonts
                    echo "Installing fonts …
                    " && cd fonts && npm install --loglevel=error --no-audit --no-fund --no-update-notifier

                    Installing fonts …

                    up to date in 3s
                    MagicMirror² installation finished successfully!

                    magicmirror@2.31.0 prepare
                    [ -f node_modules/.bin/husky ] && husky || echo no husky installed.

                    up to date in 45s

                    285 packages are looking for funding
                    run npm fund for details

                    S 1 Reply Last reply Reply Quote 0
                    • S Do not disturb
                      sdetweil @nowayto
                      last edited by

                      @nowayto weird, and npm start fails again _ not defined?

                      i installed solarpicture without problems

                      Sam

                      How to add modules

                      learning how to use browser developers window for css changes

                      N 1 Reply Last reply Reply Quote 0
                      • N Offline
                        nowayto @sdetweil
                        last edited by

                        @sdetweil
                        I’m sure.I don’t think SolarPicture could be the problem.

                        Yes, the error keep showing

                        S 1 Reply Last reply Reply Quote 0
                        • S Do not disturb
                          sdetweil @nowayto
                          last edited by

                          @nowayto wild, lets do this… intall MM again, but save the current…

                          #backup MM config and modules list
                          bash -c  "$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror-backup-restore/main/mm_backup.sh)"
                          #rename the MagicMirror folder out of the way
                          cd ~
                          mv MagicMirror MagicMirror.save
                          #and install MM again
                          bash -c  "$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror_scripts/master/raspberry.sh)"
                          #restore the  MM config and modules
                          bash -c  "$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror-backup-restore/main/mm_restore.sh)" 
                          

                          then

                          cd ~/MagicMirror
                          npm start 
                          

                          Sam

                          How to add modules

                          learning how to use browser developers window for css changes

                          N 2 Replies Last reply Reply Quote 0
                          • N Offline
                            nowayto @sdetweil
                            last edited by

                            @sdetweil
                            Before writing here I made backups, locally and on github, like you taught me in the past :)

                            Now I’ll try

                            1 Reply Last reply Reply Quote 1
                            • N Offline
                              nowayto @sdetweil
                              last edited by nowayto

                              @sdetweil

                              That’s incredible… I did it, everything goes good… no issues but when I start it

                              npm start

                              magicmirror@2.31.0 start
                              npm run start:x11

                              magicmirror@2.31.0 start:x11
                              DISPLAY=“${DISPLAY:=:0}” ./node_modules/.bin/electron js/electron.js

                              [2025-05-11 22:44:21.593] [LOG] Starting MagicMirror: v2.31.0
                              [2025-05-11 22:44:21.682] [LOG] Loading config …
                              [2025-05-11 22:44:21.687] [LOG] config template file not exists, no envsubst
                              [2025-05-11 22:44:23.250] [INFO] Checking config file /home/MYMIRR/MagicMirror/config/config.js …
                              [2025-05-11 22:44:23.532] [INFO] Your configuration file doesn’t contain syntax errors :)
                              [2025-05-11 22:44:23.535] [INFO] Checking modules structure configuration …
                              [2025-05-11 22:44:23.824] [ERROR] _ is not defined

                              Again this _ is not defined

                              S 1 Reply Last reply Reply Quote 0
                              • S Do not disturb
                                sdetweil @nowayto
                                last edited by sdetweil

                                @nowayto wow!!! NOW i am really confused.

                                have you rebooted?

                                if you try the sample config.js

                                cd ~/MagicMirror/config
                                mv config.js config.js.save
                                cp config.js.sample config.js
                                

                                and then
                                npm start

                                does it run or fail

                                Sam

                                How to add modules

                                learning how to use browser developers window for css changes

                                N 1 Reply Last reply Reply Quote 0
                                • N Offline
                                  nowayto @sdetweil
                                  last edited by

                                  @sdetweil
                                  Sam… I don’t know how to saying it.
                                  I figure out the issue.

                                  After your last message I tried what you suggest.
                                  With the default cfg I had no errors, with mine I had errors.

                                  So I checked again and again the config…
                                  and I find an underscore _ right at the start of the config

                                  npm config:check told me “no syntax errors” and that confusing me.

                                  When I edit it I use nano editor
                                  I do “sudo nano config.js” and I press CTRL + _ to jump at the 250 line.
                                  Might be one of the latest time I opened it and press _ a bit faster than CTRL and I add it for error.

                                  In addition I notice that when I open config.js with nano editor the green cursor is, clearly, at the start of the first line… EXACTLY on the undescore _ and it hides it.

                                  I’m really sorry for bothering you with that.
                                  How can I buy you a coffee ?
                                  Thanks

                                  S 1 Reply Last reply Reply Quote 0
                                  • S Do not disturb
                                    sdetweil @nowayto
                                    last edited by

                                    @nowayto no coffee needed, we found it!!!

                                    please NEVER use sudo inside MagicMirror folder
                                    no reason to use super user , just makes trouble later

                                    so if you fix the config.js in the saved MagicMirror folder then it should run ok too!!!"

                                    ill see what we can do about the misleading message… thanks for your energy here!!!

                                    Sam

                                    How to add modules

                                    learning how to use browser developers window for css changes

                                    S N 3 Replies Last reply Reply Quote 0
                                    • S Do not disturb
                                      sdetweil @sdetweil
                                      last edited by

                                      @nowayto i use ctrl-end on my keyboard for nano to get to end of file

                                      haven’t found a way to do that on my chromebook, drives me crazy!!!

                                      Sam

                                      How to add modules

                                      learning how to use browser developers window for css changes

                                      1 Reply Last reply Reply Quote 0
                                      • S Do not disturb
                                        sdetweil @sdetweil
                                        last edited by sdetweil

                                        @nowayto ok, I’ve found the error producer
                                        and I’ll propose a fix…

                                        I think this might have been more useful lol

                                        [ERROR] fatal error in /home/sam/MagicMirror/config/config.js at line 19 column 1,  _ is not defined
                                        

                                        I opened
                                        https://github.com/MagicMirrorOrg/MagicMirror/issues/3785

                                        for this issue

                                        Sam

                                        How to add modules

                                        learning how to use browser developers window for css changes

                                        1 Reply Last reply Reply Quote 1
                                        • N Offline
                                          nowayto @sdetweil
                                          last edited by

                                          @sdetweil Ok but I wanna just offer a coffe for your kind and your time spent with that.

                                          Do you suggest me to fix the old magic mirror folder or just rm it?

                                          S 1 Reply Last reply Reply Quote 0
                                          • S Do not disturb
                                            sdetweil @nowayto
                                            last edited by

                                            @nowayto if you have everything working, you can rm it

                                            i was just saying you could prove this change would fix the prior install

                                            i do this for fun, really! pay it forward, help someone else on whatever when you can.

                                            Sam

                                            How to add modules

                                            learning how to use browser developers window for css changes

                                            R 1 Reply Last reply Reply Quote 1

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