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

MMM-NetworkScanner-loading...indefinitely

Scheduled Pinned Locked Moved Solved Troubleshooting
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  • J Offline
    jthirasilpa
    last edited by Feb 18, 2020, 7:33 PM

    Sorry I’m not being clear. I know that I need to modify the config.js (and have done so), but in line 45 of node_helper.js (as shown below) there is:

     prompt: 'Password,' + this.config.Password     // put your password where ???? are (notice the quotes around)
    

    Should I leave this as is or fill in the password? That is where I have tried it both ways.

    Code you asked for from node_helper.js:

        scanNetworkMAC: function() {
     38         this.log(this.name + " is performing arp-scan");
     39
     40         var self = this;
     41         // Target hosts/network supplied in config or entire localnet
     42         var arpHosts = this.config.network || '-l';
     43                                 var options = {
     44                                                 cachePassword: true,
     45                                                 prompt: 'Password,' + this.config.Password     // put your password where ???? are (notice the quotes around)
     46                                 }
     47         var arp = sudo(['arp-scan', '-q', arpHosts], options);
    
    S 1 Reply Last reply Feb 18, 2020, 7:36 PM Reply Quote 0
    • S Offline
      sdetweil @jthirasilpa
      last edited by Feb 18, 2020, 7:36 PM

      @jthirasilpa oh, i see I should have removed the comment… you do not need to change any code…

      but the error does not match the code u are running now…

      please do

      pm2 stop 0
      pm2 flush
      pm2 start 0
      pm2 logs
      

      that error must have been from yesterday

      Sam

      How to add modules

      learning how to use browser developers window for css changes

      1 Reply Last reply Reply Quote 0
      • J Offline
        jthirasilpa
        last edited by Feb 18, 2020, 7:41 PM

        Hmm

        So with the password entered only in the config file, the error output still references line 42

         var arpHosts = this.config.network || '-l';
        

        Error output:

        0|mm       | [19:37:36.956] [ERROR]  TypeError: Cannot read property 'network' of undefined
        0|mm       |     at Class.scanNetworkMAC (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:42:36)
        0|mm       |     at Class.socketNotificationReceived (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:30:18)
        0|mm       |     at Socket.<anonymous> (/home/jojo/MagicMirror/js/node_helper.js:113:11)
        0|mm       |     at Socket.emit (events.js:198:13)
        0|mm       |     at /home/jojo/MagicMirror/node_modules/socket.io/lib/socket.js:528:12
        0|mm       |     at process._tickCallback (internal/process/next_tick.js:61:11)
        
        0|mm  | [19:37:50.982] [LOG]    MMM-NetworkScanner received SCAN_NETWORK
        0|mm  | [19:37:50.983] [LOG]    MMM-NetworkScanner is performing arp-scan
        0|mm  | [19:37:50.984] [LOG]    Whoops! There was an uncaught exception...
        0|mm  | [19:37:50.984] [ERROR]
        0|mm  | TypeError: Cannot read property 'network' of undefined
        0|mm  |     at Class.scanNetworkMAC (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:42:36)
        0|mm  |     at Class.socketNotificationReceived (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:30:18)
        0|mm  |     at Socket.<anonymous> (/home/jojo/MagicMirror/js/node_helper.js:113:11)
        0|mm  |     at Socket.emit (events.js:198:13)
        0|mm  |     at /home/jojo/MagicMirror/node_modules/socket.io/lib/socket.js:528:12
        0|mm  |     at process._tickCallback (internal/process/next_tick.js:61:11)
        0|mm  | [19:37:50.985] [LOG]
        0|mm  | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
        0|mm  | [19:37:50.986] [LOG]    If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
        0|mm  | [19:38:21.046] [LOG]
        0|mm  | MMM-NetworkScanner received SCAN_NETWORK
        0|mm  | [19:38:21.047] [LOG]
        0|mm  | MMM-NetworkScanner is performing arp-scan
        0|mm  | [19:38:21.048] [LOG]    Whoops! There was an uncaught exception...
        0|mm  | [19:38:21.048] [ERROR]
        0|mm  | TypeError: Cannot read property 'network' of undefined
        0|mm  |     at Class.scanNetworkMAC (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:42:36)
        0|mm  |     at Class.socketNotificationReceived (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:30:18)
        0|mm  |     at Socket.<anonymous> (/home/jojo/MagicMirror/js/node_helper.js:113:11)
        0|mm  |     at Socket.emit (events.js:198:13)
        0|mm  |     at /home/jojo/MagicMirror/node_modules/socket.io/lib/socket.js:528:12
        0|mm  |     at process._tickCallback (internal/process/next_tick.js:61:11)
        
        S 1 Reply Last reply Feb 18, 2020, 7:45 PM Reply Quote 0
        • S Offline
          sdetweil @jthirasilpa
          last edited by sdetweil Feb 18, 2020, 7:45 PM Feb 18, 2020, 7:45 PM

          @jthirasilpa said in MMM-NetworkScanner-loading...indefinitely:

          0|mm | [19:37:36.956] [ERROR] TypeError: Cannot read property ‘network’ of undefined
          0|mm | at Class.scanNetworkMAC (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:42:36)

          Ok, but not ‘options’…

          now, to check, this system is case sensitive… so in config.js it MUST look like this, right?

                      keepAlive: 300,
                      updateInterval: 5,
          	    Password: 'pi'                        // added password (note capital P)
                  }
          

          using your password of course

          Sam

          How to add modules

          learning how to use browser developers window for css changes

          1 Reply Last reply Reply Quote 0
          • J Offline
            jthirasilpa
            last edited by Feb 18, 2020, 8:34 PM

            That is how the config looks.

            Still getting the node_helper line 42 error. Will park this for now. Thank you for spending so much time on this Sam - much appreciated. Will come back to this later in the week.

            S 1 Reply Last reply Feb 18, 2020, 9:05 PM Reply Quote 0
            • S Offline
              sdetweil @jthirasilpa
              last edited by Feb 18, 2020, 9:05 PM

              @jthirasilpa update the current code

              cd ~MagicMirror/modules/MMM-NetworkScanner
              git pull
              

              then you can shutdown and restart the MM app

              there was a tiny timing gap where the config info is not yet set, when the helper is asked to scan the network…

              let me know

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              J 1 Reply Last reply Feb 20, 2020, 7:06 PM Reply Quote 0
              • O Offline
                OldSunGuy
                last edited by OldSunGuy Feb 21, 2020, 12:23 AM Feb 20, 2020, 6:03 PM

                Is it bad to have this?

                pi@raspberrypi ~ % sudo -l|grep NOPASS
                    (ALL) NOPASSWD: ALL
                pi@raspberrypi ~ %
                

                Edit: To expand further, I have MMM-NetworkScanner running. I do not need to supply a password when I run sudo and I don’t have a password stored in a config file.

                1 Reply Last reply Reply Quote 0
                • J Offline
                  jthirasilpa @sdetweil
                  last edited by Feb 20, 2020, 7:06 PM

                  @sdetweil
                  Hi Sam - thanks I tried the update. Still getting the same error - from the log:

                  [19:00:49.868] [ERROR]  TypeError: Cannot read property 'network' of undefined
                      at Class.scanNetworkMAC (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:42:36)
                      at Class.socketNotificationReceived (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:30:18)
                      at Socket.<anonymous> (/home/jojo/MagicMirror/js/node_helper.js:113:11)
                      at Socket.emit (events.js:198:13)
                      at /home/jojo/MagicMirror/node_modules/socket.io/lib/socket.js:528:12
                      at process._tickCallback (internal/process/next_tick.js:61:11)
                  
                  S 1 Reply Last reply Feb 22, 2020, 7:32 PM Reply Quote 0
                  • S Offline
                    sdetweil @jthirasilpa
                    last edited by Feb 22, 2020, 7:32 PM

                    @jthirasilpa do another git pull from my repo… and try again

                    Sam

                    How to add modules

                    learning how to use browser developers window for css changes

                    J 1 Reply Last reply Feb 23, 2020, 11:55 AM Reply Quote 0
                    • J Offline
                      jthirasilpa @sdetweil
                      last edited by Feb 23, 2020, 11:55 AM

                      @sdetweil
                      Thanks Sam

                      Tried update. Error log below:

                      [11:45:29.130] [ERROR]  TypeError: Cannot read property 'network' of undefined
                          at Class.scanNetworkMAC (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:46:36)
                          at Class.socketNotificationReceived (/home/jojo/MagicMirror/modules/MMM-NetworkScanner/node_helper.js:33:18)
                          at Socket.<anonymous> (/home/jojo/MagicMirror/js/node_helper.js:113:11)
                          at Socket.emit (events.js:198:13)
                          at /home/jojo/MagicMirror/node_modules/socket.io/lib/socket.js:528:12
                          at process._tickCallback (internal/process/next_tick.js:61:11)
                      

                      Node_helper code:

                              // Target hosts/network supplied in config or entire localnet
                       46         var arpHosts = self.config.network || '-l';
                       47                                 var options = {
                       48                                                 cachePassword: true,
                       49                                                 prompt: 'Password,' + self.config.Password     // put your password where ???? are (notice the quotes around)
                       50                                 }
                       51         var arp = sudo(['arp-scan', '-q', arpHosts]) //, options);
                      

                      Module entry in config.js:

                                      {
                      139                         module:                 "MMM-NetworkScanner",
                      140                         position:               "bottom_center",
                      141                         header:                 "Devices Online",
                      142                         config: {
                      143                                 devices: [
                      144                                 { ipAddress: "192.168.1.11", name: "Champagne", icon: "server"},
                      145                                 { ipAddress: "192.168.1.15", name: "Millie", icon: "server"},
                      146                                 { ipAddress: "192.168.1.17", name:  "Marmite", icon:  "server"}
                      147                                 ],
                      148                                 showUnknown: false,
                      149                                 showOffline:  true,
                      150                                 keepAlive:  600,
                      151                                 showLastSeen:  true,
                      152                                 updateInterval:  30,
                      153                                 Password:  'xxxx'
                      154                                 }
                      155                 },
                      
                      S 1 Reply Last reply Feb 23, 2020, 2:50 PM Reply Quote 0
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