NCS1.9.1 add DFU encountered a bug

Question

Hello, 
 NCS1.9.1 nRF52840DK, Windows10 X64 VSCode, 
 peripheral_lbs add dfu OTA 
 Add DFU support to your application - Software - nRF Connect SDK guides - Nordic DevZone (nordicsemi.com) 
 or download the project from here 
 sdk-nrf/samples/bluetooth/peripheral_lbs at ble_dfu_peripheral_lbs · simon-iversen/sdk-nrf · GitHub 
 
 build error fatal error: tinycbor/cbor.h: No such file or directory. 
 
 The file of cbor.h is exists. 
 
 Best Regards

user106325 · Accepted Answer

Hi, 
 i change to nRF21540DK and rebuild it ok. 
 i add two line to CMakeLists.txt, and put a private_key.pem file. 
 set(mcuboot_key_file ${CMAKE_CURRENT_SOURCE_DIR}/private_key.pem) set(mcuboot_CONFIG_BOOT_SIGNATURE_KEY_FILE "\"${mcuboot_key_file}\"") 
 rebuild (Whether two lines key are added or not) 
 nRF Toolbox whilt \build\zephyr\ dfu_application.zip , app crashed. 
 nRF Connect Device Manager with \build\zephyr\ app_update.bin , got logs:

Best Regards

NCS1.9.1 add DFU encountered a bug

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