https://devzone.nordicsemi.com/f/nordic-q-a/11149/sdk-compile-time-issue-example-ble_app_hrs_cI noticed the following compile time issue in the SDK - both 10 and 11: The file ./examples/ble_central/ble_app_hrs_c/main.c needs: #include &quot;app_uart.h&quot; For it to compile correctly.en-USTelligent Community 13Wed, 06 Jan 2016 15:00:23 GMThttps://devzone.nordicsemi.com/thread/41788?ContentTypeID=1Wed, 06 Jan 2016 15:00:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:afb2d27d-48f9-4335-bd4e-d3b749db94e7natersoz<p>You&#39;re going to make me work for this!</p> <p>Found my missing flag: CFLAGS += -DBSP_UART_SUPPORT</p> <p>Then it compiles. I was wrong.</p> <p>Thanks - I should have tried that first.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41789?ContentTypeID=1Wed, 06 Jan 2016 10:00:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:28281717-ca83-4fca-aee6-6886c394b073Ole Bauck<p>That does not change anything for me (compiles fine with armgcc with both flags). Also those flags are not present in SDK 10 example makefile.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41786?ContentTypeID=1Tue, 05 Jan 2016 17:55:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7425a879-6eef-48c0-b1d7-68099e8b04afnatersoz<p>ARM GCC.</p> <p>The SDK does in fact compile as delivered. I do have one difference: -DNRF_LOG_USES_RTT instead of -DNRF_LOG_USES_UART</p> <p>I think that broke it. No source changes.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41787?ContentTypeID=1Tue, 05 Jan 2016 16:38:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39d46fad-4a19-42db-8e65-32ceb42902f8Ole Bauck<p>Compiles very well with Keil. What setup are you using?</p><div style="clear:both;"></div>