https://devzone.nordicsemi.com/f/nordic-q-a/89836/mcuboot-build-problemsI am working on some teching modules covering MCUBoot and DFU ... and trying to get the basic examples built for an nRF52840 DK board ... and am running into an error along the lines of peripheral_secure:9: error: couldn&#39;t parse &#39;depends on $(peripheral_dependsen-USTelligent Community 13Mon, 11 Jul 2022 11:31:52 GMThttps://devzone.nordicsemi.com/thread/376401?ContentTypeID=1Mon, 11 Jul 2022 11:31:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e4ca87eb-7bcd-45e5-a64d-f873fbefee41Simon<p>The correct way to add MCUboot to your application using the nRF Connect SDK, is to add it as a child image (see <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.0.0/nrf/ug_multi_image.html">Multi image builds</a>). That can be done by building for example zephyr/samples/hello_world (not bootloader\mcuboot\samples\zephyr\hello-world) with CONFIG_BOOTLOADER_MCUBOOT=y added to zephyr/samples/hello_world/prj.conf.</p> <p>That will add the <a href="https://github.com/nrfconnect/sdk-mcuboot/blob/v1.9.99-ncs1/boot/zephyr/main.c">MCUboot sample</a> as a child image, and all the mcuboot generated build files will be located in&nbsp;<span>zephyr/samples/hello_world/build/mcuboot</span></p> <p><span>Best regards,</span></p> <p><span>Simon</span></p><div style="clear:both;"></div>