https://devzone.nordicsemi.com/f/nordic-q-a/30916/app_util-h-118-41-error-static-assertion-failed-unspecified-messageHi, I am trying to use random number generator as implemented in &quot;.../examples/peripheral/rng&quot; from SDK14.2 in a project but receiving compile problems as shown below. ble_app_hrs_rscs_relay is used as project template. I enabled RNG_ENABLED in sdk_configen-USTelligent Community 13Tue, 27 Feb 2018 14:14:35 GMThttps://devzone.nordicsemi.com/thread/122149?ContentTypeID=1Tue, 27 Feb 2018 14:14:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:008c5ea6-f8bd-418a-9673-eb20b344ab00Yunus<p>Thanks for your replay. It is working now <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/122142?ContentTypeID=1Tue, 27 Feb 2018 13:48:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1e5e2c63-9979-4d55-bb95-66c6b6732cd8MartinBL<p>Hi,</p> <p>Try to increase&nbsp;<em>RNG_CONFIG_POOL_SIZE</em>&nbsp;in sdk_config.h to 64 ( the same size as&nbsp;SD_RAND_POOL_SIZE). Then make sure to add<i> &quot;$(SDK_ROOT)/components/libraries/queue/nrf_queue.c&quot;</i> to your Makefile and set NRF_QUEUE_ENABLED to 1 in sdk_config.h. That seemed to do the trick for me.&nbsp;</p><div style="clear:both;"></div>