ID:15918 PLL "<name>" has its compensation clock type set to an LVDS clock, but the PLL does not connect to either an LVDS Receiver or an LVDS Transmitter block

CAUSE: When the compensate clock parameter of the specified PLL is set to an LVDS clock, the specified PLL must be connected to either an LVDS receiver block or an LVDS transmitter block.

ACTION: Make sure that the specified PLL is connected to an LVDS receiver or LVDS transmitter block, or change the value of the compensate clock parameter of the PLL.