ID:15508 Output port <name> of enhanced PLL "<name>" must feed an output pin

CAUSE: The specified output port of the specified enhanced PLL is not driving any destinations. If you specified the port in the FEEDBACK_SOURCE parameter, the output port of the enhanced PLL must directly feed an output pin. This error usually occurs when you instantiate a megafunction directly in a text file rather than using the MegaWizard Plug-In Manager .

ACTION: Modify the design so that the output port of the specified enhanced PLL feeds an output pin.