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androidandroid-studioadb

Blinking option in Connected Devices list that won't let me debug any app

I have this weird problem that I have a blinking option ( appears for a second and then it's gone; and then appears again and so on) when I try to deply an app in the connected devices:

The option that appears

When the option dissapears

When I try to debug the app in any connected or virtual device I get this error:

01/23 18:49:36: Launching app
$ adb push D:\xxx\app\build\outputs\apk\debug\app-debug.apk /data/local/tmp/com.xxx.appname
Device emulator-5556disconnected, monitoring stopped.
Error while Installing APK

I'm not trying to deply in that ghost device. I don't know that emulator-5556 is. Tried virtual and real phones with the same error. The only thing I can do to make it "work" is doing and adb kill-server and select the device I want to debug fast. Before the emulator-5556 device starts appearing again.

The problem is after that, If I need to debug again(because I did some change of something like that) I need to kill ADB again because the emulator-5556 device is blinking again. It's really annoying.

Solution

  • I executed this command:

    netstat -anob

    And realized another unrelated app was using port 5556: 

      TCP    0.0.0.0:5556           0.0.0.0:0              LISTENING       12724
 [videostream-native.exe]
  TCP    0.0.0.0:5557           0.0.0.0:0              LISTENING       12724
 [videostream-native.exe]

    Videostream is the app to stream video to chromecast. That was the culprit. Killed the process and now is not blinking anymore.