https://devzone.nordicsemi.com/f/nordic-q-a/12783/hrs-not-created-in-nrf5-sdkHi, I use [nRF5_SDK_11.0.0\examples\ble_peripheral\ble_app_hrs\pca10040\s132],but I get error such as the following. { ............\components\softdevice\s132\headers\nrf_nvic.h(233): error: #20: identifier &quot;NRF_ERROR_SOC_BASE_NUM&quot; is undefined returnen-USTelligent Community 13Tue, 29 Mar 2016 23:58:16 GMThttps://devzone.nordicsemi.com/thread/48591?ContentTypeID=1Tue, 29 Mar 2016 23:58:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:06f8ed56-b5f4-4833-83fd-e1286493ec4aUBAN<p>Hi, Ole Bauck. I am using keil as toolchain.I found that [&quot;nrf_error.h&quot;] located in the [nrf_nvic.h] had become to [&quot;nrf_error_soc.h&quot;.].Change its part, error is no longer out. Thank you for answering.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/48590?ContentTypeID=1Tue, 29 Mar 2016 14:05:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:afe6753f-dc26-4c4f-871f-31cccbcc2b52Ole Bauck<p><code>NRF_ERROR_BASE_NUM</code> and <code>NRF_SUCCESS</code> is defined in <code>nrf_error.h</code>. Are you sure this file is linked to in your project? What toolchain are you using? Have you altered anything in the example project?</p><div style="clear:both;"></div>