Doing a program in keil nrf52840 together with ST -link v2

[KimSolvay]

I have done a program with keil IDE and am putting into use an ST link v2 for a debugger, and in Keil am getting “internal command error” as the problem.

The screenshot below elaborates more my outcome:

What can be the cause of this problem? From my end I had a thought of this problem being a bootloader but I have no more idea.

Thank you and regards.

[Hung Bui]

Hi Kim, 

Your issue is similar to this: https://devzone.nordicsemi.com/f/nordic-q-a/71517/softdevice-flash-error-with-keil-using-st-link-v2

Could you have a look and follow the suggestion ?