Android Studio Emulator (AVD) is already running

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Sometimes in Android Studio the AVD or Android Emulator does not terminate properly.

Upon next launch this annoying “device is already running” and a process ID warning will pop up.

This warning happens because there is a lock file (hardware-qemu.ini.lock) which once deleted will let you run the emulator again.

The path is the following:

$HOME/.var/app/com.google.AndroidStudio/config/.android/avd/Pixel_9.avd/hardware-qemu.ini.lock

Obviously replace the example’s device name in the path (Pixel_9.avd) with your own device’s name.

Android Studio Emulator (AVD) is already running

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