https://devzone.nordicsemi.com/f/nordic-q-a/104843/error-nrfx_rtc1_inst_idx-undeclared-here-on-ncs-v2-4-2I would like to access RTC1 through NRFX_RTC_INSTANCE macro. But west build failed. Does you have any suggestion? Procedures to reproduce this issue are as follows. 1. Unzipping rtc.zip to C:\ncs\v2.4.2\nrf\samples folder. 2. west build -b en-USTelligent Community 13Thu, 19 Oct 2023 09:41:21 GMThttps://devzone.nordicsemi.com/thread/451237?ContentTypeID=1Thu, 19 Oct 2023 09:41:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:58a1ef5e-bfbf-4c09-a571-a3c2ca21aef9snowuyl<p>I have fixed this issue by adding the following definition to prj.conf file.</p> <p><pre class="ui-code" data-mode="text">CONFIG_COMPILER_OPT=&quot;-DNRFX_RTC_ENABLED=1 -DNRFX_RTC1_ENABLED=1&quot;</pre></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/451210?ContentTypeID=1Thu, 19 Oct 2023 08:15:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5722ea86-d29f-4a2e-989c-534c0d37cd5dsnowuyl<p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/8206.rtc.zip">devzone.nordicsemi.com/.../8206.rtc.zip</a></p><div style="clear:both;"></div>