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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

      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 Reply Quote 0
      • S Offline
        sdetweil @jthirasilpa
        last edited by

        @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

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        • J Offline
          jthirasilpa
          last edited by

          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)
          
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          • S Offline
            sdetweil @jthirasilpa
            last edited by sdetweil

            @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

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            • J Offline
              jthirasilpa
              last edited by

              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 Reply Quote 0
              • S Offline
                sdetweil @jthirasilpa
                last edited by

                @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 Reply Quote 0
                • O Offline
                  OldSunGuy
                  last edited by OldSunGuy

                  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.

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                  • J Offline
                    jthirasilpa @sdetweil
                    last edited by

                    @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 Reply Quote 0
                    • S Offline
                      sdetweil @jthirasilpa
                      last edited by

                      @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 Reply Quote 0
                      • J Offline
                        jthirasilpa @sdetweil
                        last edited by

                        @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                 },
                        
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