ID:176198 Can't place fast PLL <name> in fast PLL location <name> -- fast PLL, or one or more differential I/O pins driven by fast PLL, has location assignment incompatible with fast PLL

CAUSE: The Fitter tried to place the specified fast PLL in the specified location. However, the fast PLL, or one or more of the differential I/O nodes driven by the fast PLL, has a location assignment that is incompatible with the fast PLL. As a result, the Fitter could not place the fast PLL.

ACTION: Change the location assignment for the fast PLL or the differential I/O pins.