Ionic cordova run

I have an issue with an ionic app.
While it is running (on my device) with:
ionic cordova run android,
when i try to run it with ionic cordova run android --prod
i get a white page and no errors in the chrome://inspect.

Can you please help me?

Make sure to reload the application using the refresh button in the debugger, there likely is an error at application startup that you are missing because the debugger attaches too late.

Hey Josh i am very glad i speak to you. Thanks to your tuts i learned ionic.
Please tell me how can i do this? i mean the reload in the debugger