ID:24260 The pin "<name>" is constrained to the location "<name>". The four pins "<name>", "<name>", "<name>", "<name>" share the same output enable, reset, and clock enable signals. A signal with a different source cannot be placed within the same group.
CAUSE: Different output enable, reset and clock enable sources in the same nibble group.
ACTION: Update the location assignment to ensure different output enable, reset, and clock enable signals are placed in different nibble groups.