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

Manually delete these following folders:

C:\Users\%UserName%.android\avd\AVD2.1.avd\cache.img.lock

C:\Users\%UserName%.android\avd\AVD2.1.avd\userdata-qemu.img.lock

this always works for me. :3