Compilation Error when building the openthread coprocessor for the nrf52840dongle (as per the "Developing Matter products with nRF Connect SDK" webinar)

[Oide Brett]

Hi,

I have been following the webinar "Developing Matter products with nRF Connect SDK" and was successfully able to build the matter lock sample and flash to my nrf52840 development kit.

However, when building the openthread coprocessor for my nrf52840dongle I run into a compilation error in the build.

As per the instruction in the video (https://www.youtube.com/watch?v=kdMJQFDRoss&t=1000s) I used the following command in the "~/ncs/nrf/samples/openthread/coprocessor" directory

$ west build -b nrf52840dongle_nrf52840 -- -DOVERLAY_CONFIG="overlay-rcp.conf ../cli/overlay-thread_1_2.conf overlay-usb.conf"

However, the build fails with the following error:

device.h:81:39: error: '__device_dts_ord_DT_CHOSEN_zephyr_ot_uart_ORD' undeclared (first use in this function)
   81 | #define DEVICE_NAME_GET(name) _CONCAT(__device_, name)

My Environment is:

• development platform: linux ubunty
• nvc/nrf version: 1.8.0-rc2

Any advice would be greatly appreciated as I am keen to learn more about Matter and the nRF52840.

Rgds

Oide Brett

[Charlie]

Hi Oide,

Thanks for reporting this issue to us. I can recreate this issue locally, will forward it to our development team to fix it.

Best regards,

Charlie

[Oide Brett]

Thanks Charlie! Its a great video tutorial by @damainkrolik. Hopefully the issue can be fixed so that others can follow this excellent demo!