s="line">M504: RTE Model reports: MISSING:     -- require CMSIS:CORE</div>
<div class="line">M504: RTE Model reports: MISSING:     -- require CMSIS:RTOS</div>
</div><!-- fragment --> This is because it cannot resolve and check dependencies on components that are not part of this Pack (in this case the CMSIS components CORE and RTOS). You can either safely ignore these warnings or include the ARM.CMSIS.pdsc in the checking process, so that the correctness of the references to the CMSIS pack can be validated.