ID:176276 Can't pack Register node "<name>" into I/O pin "<name>". Can't place registered I/O pin in the same location as a differential I/O pin.

CAUSE: If the Register node is packed into the I/O pin, the location assignments of the Register node and I/O pin limit the resulting registered I/O to be placed in a single location on the device. That location, however, contains a differential I/O pin. The Fitter cannot place an I/O pin that uses I/O registers into the same location as a differential I/O pin.

ACTION: Assign the Register node or I/O pin to a different location.