issue #72 helper

Author: bwp91

lib/eWeLink.js

@@ -101,7 +101,12 @@ class eWeLink {
                   }
                   //*** Synchronise (add/refresh) devices between eWeLink and Homebridge ***\\
                   this.devicesInEwe.forEach(device => {
-                     this.initialiseDevice(device);
+                     if (device.hasOwnProperty("extra") && device.extra.hasOwnProperty("uiid")) {
+                        this.initialiseDevice(device);
+                     } else {
+                        let deviceName = device.hasOwnProperty("name") ? device.name : "Unknown Device";
+                        this.log.warn("[%s] could not be synchronised due to missing uiid parameter.", deviceName);
+                     }
                   });
                   //*** Set up the ws listener for future external device updates ***\\
                   this.wsClient.receiveUpdate(device => {