ID:186340 Too many DQS I/O pins referenced by system clock pin "<name>" -- no more than <number> DQS I/O pins can be referenced by same clock pin

CAUSE: The specified number of DQS I/O pins referenced by the specified system clock pin in the design exceeds the specified maximum number of DQS I/O pins that can be placed on one side of the device.

ACTION: Modify the design to reduce the number of DQS I/O pins driven by the same system clock so that all DQS pins referenced by the clock can be placed on one side of the device.