mergehex ERROR: The hex files cannot be merged since there are conflicts

mergehex ERROR: The hex files cannot be merged since there are conflictshttps://devzone.nordicsemi.com/f/nordic-q-a/66225/mergehex-error-the-hex-files-cannot-be-merged-since-there-are-conflictsI have built boot-loader hex file from SDK 12.1.0 secure DFU project, without any changes except for public_key.c file. I am referring to steps mentioned under Combine application, bootloader and softdevice image - Bootloader setting Is this applicableen-USTelligent Community 13Wed, 23 Sep 2020 14:02:21 GMTRE: mergehex ERROR: The hex files cannot be merged since there are conflictshttps://devzone.nordicsemi.com/thread/271131?ContentTypeID=1Wed, 23 Sep 2020 14:02:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b5dd762a-403a-45d6-b863-9ba8dea1bf43Edvin<p>It should be applicable for SDK12.1.0.</p> <p>What version of nrfutil do you use? Use the command "nrfutil version" to find the version.</p> <p>What commands did you use to generate the files (BL settings if you use it), and what commands did you use to merge the files?</p> <p></p> <p>Best regards,</p> <p>Edvin</p><div style="clear:both;"></div>