Description
Due to a problem is the Quartus® II software version 12.1 and later, you may see this error if the fitter has promoted a high fan-out clock to a regional clock instead of a global clock. The error occurs because the region which is defined by the regional clock is too small to pack the logic that uses the particular clock.
Resolution
To work around this problem, manually promote high fan-out clocks to use global clock networks using the GLOBAL_SIGNAL assignment.