fix: fix the "cannot read property imageIdentifier of undefined" error

Author: Fatme

lib/common/mobile/android/android-emulator-services.ts

@@ -97,10 +97,10 @@ export class AndroidEmulatorServices implements Mobile.IEmulatorPlatformService
 
 		while (hasTimeLeft || isInfiniteWait) {
 			const emulators = (await this.getEmulatorImages()).devices;
-			emulator = _.find(emulators, e => e.imageIdentifier === emulator.imageIdentifier);
-			if (emulator && this.$emulatorHelper.isEmulatorRunning(emulator)) {
+			const newEmulator = _.find(emulators, e => e.imageIdentifier === emulator.imageIdentifier);
+			if (newEmulator && this.$emulatorHelper.isEmulatorRunning(newEmulator)) {
 				return {
-					runningEmulator: emulator,
+					runningEmulator: newEmulator,
 					errors: [],
 					endTimeEpoch
 				};