https://devzone.nordicsemi.com/f/nordic-q-a/127692/building-prj-confHi everyone i have a problem with building a project, i dont know what i did wrong, before everything was building fine, but now if i pristine build any project some lines in prj.conf arent included in the build. For example this one CONFIG_UART_INTERRUPT_DRIVENen-USTelligent Community 13Tue, 07 Apr 2026 11:45:48 GMThttps://devzone.nordicsemi.com/thread/564506?ContentTypeID=1Tue, 07 Apr 2026 11:45:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95d12eab-6ac1-4e5b-94c4-32fd686a158eKazi Afroza Sultana<p>Hello,</p> <p>Try to add the following configuration is the config file</p> <p><pre class="ui-code" data-mode="text">CONFIG_SERIAL=y CONFIG_UART_INTERRUPT_DRIVEN=y</pre></p><div style="clear:both;"></div>