App not run in visual studio emulator for android in visual studio 2015

Question

I create blank xamarin android project without add any code when i debug this project debugging without problem but when i run app with visual studio emulator for android emulator is running but not starting my app and deploy failed and don't show me error

why ? please help me

Answer 1

I had the same issue. VS 2015 can launch the VS emulator but can't deploy the app.

I was able to solve the issue like this:

1. Launch the emulator (F5 in VS, then cancel the deployment using the Build/Cancel menu)
2. Click on the chevron icon (») in the toolbar to the right of the emulator
3. Select the Network tab
4. Locate the preferred network ip address
5. Back in VS, click on the Open Adb Command Prompt toolbar button
6. Type adb connect [the emulator ip address]
7. Press F5 again in VS

Looks like a VS bug to me.

Answer 2

I had the same issue. It turned out the root cause was that the VS Emulator couldn't find adb.exe.

When that happens it won't connect to the emulator unless you do the manual connection following the steps CSharpRocks gives. The emulator also won't be listed under "adb devices".

The fix for me was to reinstall the Android SDK, using the Windows EXE based installer (not the zip installer). The EXE installer sets the HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools key, Path value, in the registry, pointing to the Android SDK root directory.

The VS Emulator uses that registry setting (or the Android Studio install registry setting) to find the SDK, assuming you didn't install the Android SDK with Visual Studio itself. With that, it should be able to find adb.exe and work.