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

    MMM-PIR-Sensor - White Screen

    Scheduled Pinned Locked Moved Troubleshooting
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    • MedoM Offline
      Medo @zichao92
      last edited by paviro

      @zichao92

      First things that come to my mind:

      • maybe a “sudo” is missing? Like sudo npm install --unsafe-perm?
      • are you executing this from the MMM-PIR-Sensor directory ?
      Z C 2 Replies Last reply Reply Quote 0
      • Z Offline
        zichao92 @Medo
        last edited by paviro

        Hi @Medo, Thanks for the reply.
        1.) I tried this method and it gives an output of the following error.

        pi@raspi:~/MagicMirror/modules/MMM-PIR-Sensor $ sudo npm install --unsafe-perm
npm WARN prefer global npm@3.10.10 should be installed with -g
> epoll@0.1.20 install /home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/epoll
> node-gyp rebuild
make: Entering directory '/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/epoll/build'
  CXX(target) Release/obj.target/epoll/src/epoll.o
  SOLINK_MODULE(target) Release/obj.target/epoll.node
  COPY Release/epoll.node
make: Leaving directory '/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/epoll/build'
> nslog@3.0.0 install /home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/nslog
> node-gyp rebuild
make: Entering directory '/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/nslog/build'
  CXX(target) Release/obj.target/nslog/src/main.o
  CXX(target) Release/obj.target/nslog/src/nslog_linux.o
  SOLINK_MODULE(target) Release/obj.target/nslog.node
  COPY Release/nslog.node
make: Leaving directory '/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/nslog/build'
> Magic-Mirror-Module-PIR-Sensor@1.1.0 postinstall /home/pi/MagicMirror/modules/MMM-PIR-Sensor
> electron-rebuild -e ../../node_modules/electron-prebuilt
Unable to find electron-prebuilt's version number, either install it or specify an explicit version
npm ERR! Linux 4.4.38-v7+
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" "--unsafe-perm"
npm ERR! node v7.3.0
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! Magic-Mirror-Module-PIR-Sensor@1.1.0 postinstall: `electron-rebuild -e ../../node_modules/electron-prebuilt`
npm ERR! Exit status 255
npm ERR!
npm ERR! Failed at the Magic-Mirror-Module-PIR-Sensor@1.1.0 postinstall script 'electron-rebuild -e ../../node_modules/electron-prebuilt'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the Magic-Mirror-Module-PIR-Sensor package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     electron-rebuild -e ../../node_modules/electron-prebuilt
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs Magic-Mirror-Module-PIR-Sensor
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls Magic-Mirror-Module-PIR-Sensor
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR!     /home/pi/MagicMirror/modules/MMM-PIR-Sensor/npm-debug.log
        1. Yea it’s in the file directory ( MagicMirror/modules/MMM-PIR_Sensor )

        Note from admin: Please use Markdown on code snippets for easier reading!

        MedoM 1 Reply Last reply Reply Quote 0
        • MedoM Offline
          Medo @zichao92
          last edited by paviro

          @zichao92
          What i also did, was a complete reinstall of the PIR-Sensor

          I followed the steps, “Banglee” described some lines above:

          ok so lets go step by step:
          cd ~/MagicMirror/modules/

          now we will remove the PIR folder:
          rm -rf MMM-PIR-Sensor

          and from here, we’re going to reinstall the MMM-PIR-Sensor modul:

          git clone https://github.com/paviro/MMM-PIR-Sensor.git
cd MMM-PIR-Sensor

          run the following cmd here:
          npm install and wait, this can take a few minutes.

          Now you’ll have to add pi to gpio
          sudo useradd -g pi gpio

          and reboot your Raspi:
          sudo reboot

          Sorry, no further ideas so far (maybe you can open a PIR-Sensor troubleshooting thread)?

          Note from admin: Please use Markdown on code snippets for easier reading!

          Z 1 Reply Last reply Reply Quote 0
          • Z Offline
            zichao92 @Medo
            last edited by

            Hi @Medo ,
            I managed to get it working in an ugly way. Doesnt matter, it works. Thanks for your help!

            1 Reply Last reply Reply Quote 0
            • J Offline
              jwhittaker
              last edited by jwhittaker

              I’m having nothing but trouble with this. I’ve tried all the tips on here but still get a white screen.

              @zichao92 What was the ugly way and how did you manage to get it working please?

              This is the error I get:

              > electron js/electron.js

>Starting MagicMirror: v2.1.0
Loading config ...
Loading module helpers ...
WARNING! Could not load config file. Starting with default configuration. Error found: Error: Could not locate the bindings file. Tried:
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/default/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/compiled/6.5.0/linux/arm/epoll.node
Loading module helpers ...
App threw an error during load
Error: Could not locate the bindings file. Tried:
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/default/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/compiled/6.5.0/linux/arm/epoll.node
    at bindings (/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/bindings/bindings.js:88:9)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/epoll.js:1:116)
    at Module._compile (module.js:556:32)
    at Object.Module._extensions..js (module.js:565:10)
    at Module.load (module.js:473:32)
    at tryModuleLoad (module.js:432:12)
    at Function.Module._load (module.js:424:3)
    at Module.require (module.js:483:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/onoff/onoff.js:4:11)
Whoops! There was an uncaught exception...
{ Error: Could not locate the bindings file. Tried:
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Debug/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Release/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/default/epoll.node
 → /home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/compiled/6.5.0/linux/arm/epoll.node
    at bindings (/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/bindings/bindings.js:88:9)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/epoll.js:1:116)
    at Module._compile (module.js:556:32)
    at Object.Module._extensions..js (module.js:565:10)
    at Module.load (module.js:473:32)
    at tryModuleLoad (module.js:432:12)
    at Function.Module._load (module.js:424:3)
    at Module.require (module.js:483:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/onoff/onoff.js:4:11)
  tries: 
   [ '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Debug/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/Release/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Debug/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Debug/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/out/Release/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/Release/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/build/default/epoll.node',
     '/home/pi/MagicMirror/modules/default/MMM-PIR-Sensor/node_modules/epoll/compiled/6.5.0/linux/arm/epoll.node' ] }
MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
Launching application.```
              Z 1 Reply Last reply Reply Quote 0
              • Z Offline
                zichao92 @jwhittaker
                last edited by

                Hi @jwhittaker ,
                Previously i had a working node_modules that Ive installed through npm install ( Cant rmb how i got it but i managed to create a back up copy of it). Subsequently when I tried to use npm install on a new raspberry pi, it didnt work as intended.

                What i did was instead of using npm install, I bypassed it by inserting the node_module that i previously salvaged and it worked for some reasons.

                1 Reply Last reply Reply Quote 0
                • T Offline
                  Them Russians
                  last edited by paviro

                  @zichao92

                  Random question for you:

                  when i try to do an “npm install” in the “MMM-PIR-Sensor” folder, i get the following error:

                  Magic-Mirror-Module-PIR-Sensor@1.1.0 postinstall /home/pi/MagicMirror/modules/MMM-PIR-Sensor
electron-rebuild -e …/…/node_modules/electron-prebuilt
An unhandled error occurred inside electron-rebuild
Unable to find electron-prebuilt’s version number, either install it or specify an explicit version
Error: Unable to find electron-prebuilt’s version number, either install it or specify an explicit version
at _callee$ (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/electron-rebuild/lib/cli.js:74:17)
at tryCatch (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/regenerator-runtime/runtime.js:63:40)
at GeneratorFunctionPrototype.invoke [as _invoke] (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/regenerator-runtime/runtime.js:337:22)
at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/regenerator-runtime/runtime.js:96:21)
at GeneratorFunctionPrototype.tryCatcher (/home/pi/node_modules/bluebird/js/release/util.js:16:23)
at PromiseSpawn._promiseFulfilled (/home/pi/node_modules/bluebird/js/release/generators.js:97:49)
at /home/pi/node_modules/bluebird/js/release/generators.js:201:15
at Object.<anonymous> (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/electron-rebuild/lib/cli.js:197:4)
at Module._compile (module.js:570:32)
at Object.Module._extensions…js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:394:7)
at startup (bootstrap_node.js:149:9)
npm ERR! Linux 4.4.38-v7+
npm ERR! argv “/usr/bin/nodejs” “/usr/bin/npm” "install"
npm ERR! node v6.9.2
npm ERR! npm v3.10.9
npm ERR! code ELIFECYCLE
npm ERR! Magic-Mirror-Module-PIR-Sensor@1.1.0 postinstall: electron-rebuild -e ../../node_modules/electron-prebuilt
npm ERR! Exit status 255
npm ERR!
npm ERR! Failed at the Magic-Mirror-Module-PIR-Sensor@1.1.0 postinstall script ‘electron-rebuild -e …/…/node_modules/electron-prebuilt’.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the Magic-Mirror-Module-PIR-Sensor package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! electron-rebuild -e …/…/node_modules/electron-prebuilt
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs Magic-Mirror-Module-PIR-Sensor
npm ERR! Or if that isn’t available, you can get their info via:
npm ERR! npm owner ls Magic-Mirror-Module-PIR-Sensor
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! /home/pi/MagicMirror/modules/MMM-PIR-Sensor/npm-debug.logv

                  Any idea what could cause this? I suspect my white screen is because the install failed.

                  I have tried removing the “MMM-PIR-Folder” from my directory and running the clone command from github again to start fresh, but still face this issue.

                  Note from admin: Please use Markdown on code snippets for easier reading!

                  1 Reply Last reply Reply Quote 0
                  • B Offline
                    bungee09
                    last edited by

                    Similar problem to @Them-Russians when running npm install. Then after starting MM using pm2 I get a white screen. Checking the pm2 error logs I see the following error with a module version mismatch: “Expected 50, got 49”.

                     0|mm       | App threw an error during load
 0|mm       | Error: Module version mismatch. Expected 50, got 49.
 0|mm       |     at Error (native)
 0|mm       |     at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:173:20)
 0|mm       |     at Object.Module._extensions..node (module.js:583:18)
 0|mm       |     at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:173:20)
 0|mm       |     at Module.load (module.js:473:32)
 0|mm       |     at tryModuleLoad (module.js:432:12)
 0|mm       |     at Function.Module._load (module.js:424:3)
 0|mm       |     at Module.require (module.js:483:17)
 0|mm       |     at require (internal/module.js:20:19)
 0|mm       |     at bindings (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_modules/bindings/bindings.js:76:44)

                    Tried @James solution using npm rebuild but changed the version parameter to 50. Still no luck.

                      npm rebuild --runtime=electron --target=1.3.4 --disturl=https://atom.io/download/atom-shell --abi=50

                    Any help would be much appreciated before I reformat my sd card and start from scratch.

                    yawnsY 1 Reply Last reply Reply Quote 0
                    • yawnsY Offline
                      yawns Moderator @bungee09
                      last edited by

                      @bungee09
                      npm list and look for electron to find the right version. Then rerun the rebuild command with replaced version number

                      B 1 Reply Last reply Reply Quote 0
                      • B Offline
                        bungee09 @yawns
                        last edited by

                        @yawns
                        Works a treat. Thanks!

                        T 1 Reply Last reply Reply Quote 0
                        • T Offline
                          Them Russians @bungee09
                          last edited by paviro

                          @bungee09 Did you get the npm install to work on the “MMM-PIR-Sensor” directory? Or did you just run the npm list to get the version of electron and then run npm rebuild --runtime=electron --target=1.3.4 --disturl=https://atom.io/download/atom-shell --abi=50 with the right version?

                          Which directory were you in when you ran the rebuild?

                          Sorry - i’m at work now, so dont have the Pi with me, but have been having issues with this for a week now, so i’m really hoping that this works for me :)

                          B 1 Reply Last reply Reply Quote 0
                          • B Offline
                            bungee09 @Them Russians
                            last edited by

                            @Them-Russians - I feel your frustration! I spent a good few hours debugging this after installing and testing my PIR sensor. This is what eventually worked for me:

                            I ran all the commands in the MMM-PIR-Sensor Directory.

                             cd ~/MagicMirror/modules/MMM-PIR-Sensor
 npm list

                            I found the electron version number to be “1.4.3” so updated target to 1.4.3. Also, updated abi to 50 in the following command as this was the expected value from the error message in pm2 logs.

                             npm rebuild --runtime=electron --target=1.4.3 --disturl=https://atom.io/download/atom-shell --abi=50

                            As soon as the rebuild was complete…

                             cd
 pm2 restart mm

                            … to restart MagicMirror in pm2.

                            I also found this link which described the same fix.

                            Good luck!

                            T 1 Reply Last reply Reply Quote 0
                            • T Offline
                              Them Russians @bungee09
                              last edited by

                              @bungee09 Did your rebuild work successfuly? I got an error saying that i needed to have the latest versions of node.js and npm installed.

                              I believe I have node version 6.9.4. Is that what you were using?

                              After all this, i thought maybe i jacked up something, so i cleared out and reformatted the micro SD card. I reinstalled NOOBS and then got the Magic Mirror. Created the config.js file and ran the mirror without issue. Immediately after that, i cloned the PIR module and tried to run an “npm install” which failed, and so did the rebuild :(

                              B 2 Replies Last reply Reply Quote 0
                              • B Offline
                                bungee09 @Them Russians
                                last edited by

                                @Them-Russians The rebuild was successful for me using exactly the method I described above. I don’t have my pi with me currently but I only installed node for the first time last week so I definitely don’t have an old version. I can check the exact version number when I get home for you.

                                1 Reply Last reply Reply Quote 0
                                • B Offline
                                  bungee09 @Them Russians
                                  last edited by

                                  @Them-Russians
                                  BTW? Did you install node in the main MagicMirror directory first before installing dependencies in the MMM-PIR-Sensor directory?

                                   cd ~/MagicMirror
 npm install
                                  T 1 Reply Last reply Reply Quote 0
                                  • T Offline
                                    Them Russians @bungee09
                                    last edited by

                                    @bungee09 I did not do that install in the Magic Mirror folder. I ran the “curl” command from the github site for the MagicMirror, set up config.js, and then immediately got the PIR module.

                                    Do you think i could run the npm install on the MagicMirror folder now, and try again with the rebuild, or would i have to clear my SD card and reinstall everything and start from scratch?

                                    yawnsY B 2 Replies Last reply Reply Quote 0
                                    • yawnsY Offline
                                      yawns Moderator @Them Russians
                                      last edited by

                                      @Them-Russians said in MMM-PIR-Sensor - White Screen:

                                      @bungee09 I did not do that install in the Magic Mirror folder. I ran the “curl” command from the github site for the MagicMirror, set up config.js, and then immediately got the PIR module.

                                      Do you think i could run the npm install on the MagicMirror folder now, and try again with the rebuild, or would i have to clear my SD card and reinstall everything and start from scratch?

                                      Yes, running npm install now will work and it is required.

                                      1 Reply Last reply Reply Quote 0
                                      • B Offline
                                        bungee09 @Them Russians
                                        last edited by

                                        @Them-Russians
                                        npm install in the main MM directory. Then npm install in the PIR sensor directory to install dependencies. If it fails then npm rebuild as above using the correct electron version number and abi.

                                        T 1 Reply Last reply Reply Quote 0
                                        • T Offline
                                          Them Russians @bungee09
                                          last edited by

                                          @bungee09 The main MagicMirror directory, or the module directory within MagicMirror?

                                          B 1 Reply Last reply Reply Quote 0
                                          • B Offline
                                            bungee09 @Them Russians
                                            last edited by

                                            @Them-Russians In the main directory

                                             cd ~/MagicMirror/
 npm install && npm start
                                            T 1 Reply Last reply Reply Quote 0

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