Application com.sentiacare.mothersdiary is waiting for the debugger on port 8100 code example

Example: Application is waiting for the debugger to attach

You need to go to "Settings" --> "Developer Options" --> "Select debug app" on you Actual Device.
After clicking on "Select debug app", there will be a list of your installed apps, Select the app you want to run.
That is it you will not see the "Waiting For Debugger" message any more.