Here is a snippet of my debug log:
nrf_sdh_freertos: Creating a SoftDevice task. nrf_sdh_freertos: SoftDevice task not created. app: ERROR 4 [NRF_ERROR_NO_MEM] at ........\Libraries\Nordic\nRF5x\components\softdevice\common\nrf_sdh_freertos.c:108
This occurs after I add a single Task on top of the HRS_FreeRTOS example. see the following link for the same issue reported by another user.
I am using nRF5_SDK_14.2.0_17b948a