ID:181050 Could not merge leveling delay chains into the same location in an I/O bank -- leveling delay chains are driven by different DLLs.

CAUSE: Your design contains two or more leveling delay chain primitives that have been placed into the same location in an I/O bank. You cannot place these leveling delay chains into the same physical location (implying that they must be merged by the fitter), because they have their DELAYCTRLIN ports driven by different DLL signals.

ACTION: Check the connectivity of your design to ensure that all leveling delay chains are connected to DLLs correctly. If the leveling delay chains listed in the submessages are expected to be driven by different DLLs, then constrain any I/Os associated with each conflicting leveling delay chain into separate I/O sub-banks.