title: Android Studio Emulator is not running my app
body: <p>When I try to run my application, Android Studio loads my emulator but it says: "waiting device to come online" forever, then when I try to run my app with the emulator open, It says my emulator is already running and it doesn't launch my app. I already tried to delete the *.lock files and even tried to delete and create another emulator, without success.
  Can anyone help me to solve this problem? Thanks in advance.</p>