ID:14671 Ignored assignment for SYNTH_CRITICAL_CLOCK for clock "<name>" -- no registers were found for this clock

CAUSE: The Quartus Prime software ignored the specified assignment because no registers were found for the given clock. If this warning is given for a particular hierarchy or partition, the reason could be that there are no registers for this clock domain in this hierarchy or partition, or that the particular clock has a different name in this hierarchy or partition.

ACTION: Ensure a clock with this name exists.