https://devzone.nordicsemi.com/f/nordic-q-a/125261/error-building-matter-light-bulb-with-cluster-color-controlHi, we need add the cluster color control to the project light bulb. After add the build config and build the project for the firs time it build successfull: But when change the line 8193 ( &quot;enabled&quot; : 1 ) and do pristin build the terminal showsen-USTelligent Community 13Tue, 28 Oct 2025 12:55:56 GMThttps://devzone.nordicsemi.com/thread/552636?ContentTypeID=1Tue, 28 Oct 2025 12:55:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:db278163-7684-4822-83a7-9e84c69a6209Elfving<p>Hi Sergio,</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/96439/adding-sensor-capability-to-the-matter-template-results-into-ember_af_on_off_cluster_server_endpoint_count-was-not-declared-in-this-scope/408998">Could you double check that you are using the right scripts?</a>&nbsp;This issue does look similar to a <a href="https://devzone.nordicsemi.com/f/nordic-q-a/117148/nrf-sdk-2-7-matter-light-bulb-sample-not-building-for-new-on-off-switch-endpoints/514263">few older ones</a> in which the wrong tools were used.</p> <p>I should also mention that it is recommended to use a newer SDK if this is a new project you are starting.</p> <p>Regards,</p> <p>Elfving</p><div style="clear:both;"></div>