How to building the openthread\coprocessor project on the nrf52840_dongle？

Question

Dear Nordic Engineers 
 I use the NCS V1.9.1.I would like to building the openthread\coprocessor project on the nrf52840_dongle.I read this page: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/nrf/samples/openthread/coprocessor/README.html. 
 The coprocessor sample support the nrf 52840 dongle. 
 
 But a n error occurred during the construction of the project. 
 
 I try to create a new .overlay file.But look like it's useless. 
 
 Please help me,how to building the openthread\coprocessor project on the nrf52840_dongle？ 
 Best regards.

user92402 · Accepted Answer

Hi, 
 The nRF52840 Dongle does not have UART, so you must configure the sample to use USB instead by setting OVERLAY_CONFIG to overlay-usb.conf and DTC_OVERLAY_FILE to usb.overlay as described in Configuration files . You cannot specify multiple CMake options in SES due to a bug, so you will have to use VS Code or command line to build the sample. 
 Best regards, 
 Marte

How to building the openthread\coprocessor project on the nrf52840_dongle？

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