ID:186348 Custom regions on DQS I/O pin "<name>" and its DQ I/O pins do not merge to form a common region with DQS or DQ pins in device

CAUSE: You made custom region assignments on the DQS I/O pin and its DQ I/O pins that do not merge to form a region that encompasses DQS and DQ I/O pins in the device.

ACTION: Modify the custom region assignment to form a common region.