Android Studio "waiting for debugger"

Question

I've created simple "Hello, world!" project using android studio. When I run it on the device or emulator - everything is fine. Then I make attempt to run it in the debug mode - and it fails after a few minutes "waiting for debugger" dialog on the screen and

`Error running test-test: Unable to open debugger port : java.io.IOException`

message in event log.

How can I solve this problem?

Michael Yunusov this problem was on different machines the same time.

Solution: I had two IDEs running the same time: Android studio and Eclipse. Closing one of them fixed the issue.

Answer 1

Go to Setting > Developer Options > open Revoke USB debugging authorizations >choose OK

If you cannot find Developer Options: go to [Settings] > [About Phone], and tap [Version] for 7 times

Answer 2

How it worked for me.

1. Start Android Device Monitor from Tools -> Android -> Android Device Monitor

2. Click on Stop for the process you are facing the issue from list of devices.

Answer 3

When i had this problem it was as a result of an invalid android manifest

Answer 4

Try to reset your ADB.

To reset the ADB server: Open Run-> Cmd-> adb kill-server

To start it again you can use: Open Run-> Cmd-> adb devices