https://devzone.nordicsemi.com/f/nordic-q-a/22468/nrf52832-dfu-error-sdk-12-3-0I included button less DFU service in the proximity profile example.When i compile i am getting the following error. ..\..\..\..\..\..\components\libraries\bootloader\dfu\nrf_dfu_settings.c(199): error: #20: identifier &quot;NRF_DFU_SETTINGS_VERSION&quot; isen-USTelligent Community 13Wed, 16 Aug 2017 06:01:23 GMThttps://devzone.nordicsemi.com/thread/88331?ContentTypeID=1Wed, 16 Aug 2017 06:01:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:914470c7-98e6-4a4d-ab5e-7ab07ee98e4dsara<p>If you are using KeilC then please follow the steps as below:</p> <p>1 [Project] -&gt; [Option for Target]</p> <p>2 Tab [C/C++]</p> <p>3 Add &quot;NRF_DFU_SETTINGS_VERSION=1&quot; to [Define]</p> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/setting.PNG" alt="image description" /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/88332?ContentTypeID=1Wed, 31 May 2017 14:49:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ecae064-1108-4b7a-adee-3a64e07ef02fatune<p>Read the error message. NRF_DFU_SETTINGS_VERSION is undefined.</p> <p>Take a look at the Buttonless DFU example. It defines the version in the Makefile:</p> <pre><code>CFLAGS += -DNRF_DFU_SETTINGS_VERSION=1 </code></pre><div style="clear:both;"></div>