ID:21006 The dataout output of output phase alignment primitive "<name>" must drive an output pin (directly or indirectly through up to 2 delay chain primitives) when OPERATION_MODE parameter is set to "out" or "ddio_out"

CAUSE: The dataout output of the specified output phase alignment primitive has an illegal connection.

ACTION: Check the design and make sure that the specified dataout output is driving the i input of an I/O output buffer. You can also connect the dataout output to the i input indirectly through up to two delay chain primitives. In this configuration, the dataout output of the specified output phase alignment primitive would drive the datain input of a delay chain primitive and the dataout output of the same delay chain primitive would drive the i input of an I/O output buffer. Alternatively, you can change the value of the OPERATION_MODE parameter.