ID:186333 DQS Phase Shift, DQS Frequency, and DQS Input Reference Clock logic options must be specified for DQS I/O pin "<name>"

CAUSE: You assigned the DQS Phase Shift , DQS Frequency , or DQS Input Reference Clock logic option to the specified DQS I/O pin. However, you must assign all three logic options to DQS I/O pins. For projects created prior to 2.1 SP1, you must add DQS Input Reference Clock assignments assignments to each DQS pin. Its value must be the name of the input clock signal (design pin name), which should be considered as the system clock for the DQ/DQS interface.

ACTION: Assign the DQS Phase Shift, DQS Frequency, and DQS Input Reference Clock logic options to the DQS I/O pin.