Android: Emulator frequently disconnected (offline)!

Question

Sometime just after I launched a new emulator, for very first time I was trying to upload my apk, however I got \"emulator: ERROR: the user data image is used by another emu

Answer 1

In my case it happens when I have another process listening on emulator port.

e.g. if I see:

emulator-5554 offline

it means that something is using port 5554