ID:16249 Design contains a DQ_GROUP or DM_PIN assignment, but there is no PHY clock buffer in the design. Remove the DQ_GROUP or DM_PIN assignment.

CAUSE: Your design has external memory interface (EMIF)-specific pin assignment--either the DQ_GROUP or DM_PIN assignment, but does not contain a PHY clock buffer, which is required to use the EMIF pin assignment.

ACTION: Remove DQ_GROUP or DM_PIN assignment. Use Q's or the IP Parameter Editor to work with external memory interface IP cores and pins.