ID:15931 Atom "<name>" has port <name> that must be connected <text>

CAUSE: The specified port of the specified atom is unconnected or has an illegal connection.

ACTION: Change the port connection so that it is legal. If you are using an EDA tool, contact the technical support for the EDA tool regarding this message. For further assistance contact Intel Technical Support by creating a Service Request at www.altera.com/mysupport.