Unable to open debug port: java.net.socketexception “Connection refused” - Android Studio

Question

This error occur while attaching debugger to process.

I've checked solutions from similar issue with "Socket closed" and it does not fix this.

After this runnig app with debugger attached returns:

Error running Android Debugger (port): Unable to open debugger port : java.net.SocketException "Connection reset" 

Any ideas ?

Env:
Android Studio v1+
Linux x64

Answer 1

检查防火墙设置，打开此端口关闭可能连接到设备的任何其他工具或窗口，即铬检查窗口，另一个日食等。