Error running adb: No Android device found - Cannot connect to Visual Studio Emulator for Android

Description

I am trying to use the Visual Studio Emulator for Andoid since the Android Studio AVDs need Hyper-V disabled. In the project folder I run: npm run android and the get the message: Error running adb: No Android device found Also get the same when I do npm start and then pressing a to open in Android. I do see a device listed if I run the adb devices command in Android/Sdk/platform-tools

Expected Behavior

Enter the npm run android command from the project folder and have it connect to and run in the Visual Studio Emulator for Android.

Observed Behavior

I receive the following error message:

Error running adb: No Android device found

Environment

• npm ls react-native-scripts: react-native-scripts@1.11.1
• npm ls react-native: react-native@0.52.0
• npm ls expo: expo@25.0.0
• node -v: v8.9.4
• npm -v: 4.6.1
• yarn --version: not installed
• watchman version: not installed

Also specify:

1. Operating system: Windows 10
2. Phone/emulator/simulator & version: Visual Studio Emulator for Android - 5" Marshmellow (6.0.0) XHDPI Phone, API Level 23 (Marshmellow 6.0.0)

[JohnTheo13]

It’s looking for an Android device since none is connected, it gives this message, if you first open your virtual device and then run your script, you should be fine, it worked for me at least…

[pinchez254]

Try android 7 emulator. I think Expo client is having issues with latter versions. I went over to play store in the emulator and viewed expo to see whether i could update it, and I found a message that " this version us not supported in your device". Try different emulators…for me only android 7 emulator instead and That worked for me in Linux. I think in mac its pretty stable.