ID:274028 Top-level port can only connect to the padio port of one WYSIWYG I/O primitive

CAUSE: The WYSIWYG primitive I/Os. Top-level ports can only be connected to the padio port of one WYSIWYG primitive I/O. This error can occur if user instantiates multiple WYSIWYG I/Os with the padio port connected to same top-level port in the design, or EDA synthesis tool incorrectly inserts multiple WYSIWYG I/Os with padio ports connected to the top-level port.

ACTION: Make sure that multiple WYSIWYG primitive I/Os are not connected to single port. If the EDA synthesis tool has created multiple WYSIWYG I/Os connected to same external port, disable automatic I/O pad insertion in the EDA synthesis tool.