Hi,
Just wonder if you have had a chance to try the following:
- In your schematic, delete all the wires, pins and the altmult_complex instance
- Launch the Megawizard for the altmult_complex IP in your design and regenerate the HDL and BSF
- Add the new BSF into schematic
- Right-click on the instance -> Generate Pins. This should auto-generate the input/output pins with the corresponding width
- Run the compilation again to see if issue still persist
If issue still persist, please help to attach your test design QAR so that I can further look into it. Thank you very much.