ID:15576 PLL Compensation logic option is specified for several inputs that are fed by the compensated output clock of PLL "<name>" in Source Synchronous mode

CAUSE: You turned on the PLL_COMPENSATE logic option for several inputs. However, some of the inputs cannot be compensated. As a result, the Quartus Prime software is selecting one of the inputs to be the compensated input.

ACTION: To avoid receiving this message in the future, specify the PLL_COMPENSATE logic option for only one input.