ID:176193 Fast PLL <name> cannot reach differential I/O pin <name> in location <name> using any differential I/O clock networks

CAUSE: The Fitter tried to place the specified differential I/O pin in the specified location. However, the specified fast PLL cannot reach the differential I/O pin using any differential I/O clock networks. As a result, the Fitter cannot place the differential I/O pin.

ACTION: Change the location assignment for the fast PLL or its differential I/O nodes, or modify the design to reduce the number of differential I/O nodes driven by the fast PLL.