Device does not debugging on Android Studio

Question

我启动调试器，在外部设备上什么也不做，例如：-在运行时打开应用程序-在调试器上打开应用程序-调试时在手表上显示结果

Answer 1

To resolve this,

You need verify before, your module apps configuration

The Launch Option is disabled, that significcate when you compile the source code, don't make nothing.

You need click on Options, and select "Default Activity", after click "OK" or "Finish"

This worked to me,