Debuging on a custom board

[NilsDR]

Hi,

I've made a custom board for a nrf9160 chip. I've added all the necessary peripherals and hardware in a device tree and made a hello world sample to test the board. The sample builds successfully and can flash and run on the target. I can even use RTT to print to a terminal. The problems is when I try to debug I get the following error:

If I build my project for another board for example the nrf9160dk_nrf9160 everything works fine. 

When designing my custom board I follow this tutorial: https://www.youtube.com/watch?v=V_dVKgWKILM&ab_channel=NordicSemiconductor

Am i missing something that enables debugging? I'm using the v2.4.0 version of the SDK and toolchain

[NilsDR]

It seems like this is an issue with the version of the nrfconnect vs code extension. I found this similar thread:  Debug option in nRF connect extension(v2023.11.301) in vscode is unable to start a debug session .

Downgrading to version v2023.9.169 solved the problem for me, while downgrading to v2023.9.336 got the error again. Something introduced in that upgrade must be causing the problem.