No inputs or outputs have been configured for this HDL Node or there is an input or output that is not fully configured. The node is required to have at least one input or output and all inputs and outputs must be fully specified (name, direction, and type).

To correct this error, right-click the node and select Properties to open the HDL Interface Node Properties dialog box and configure at least one input or output for this node. Make sure that all inputs and outputs are fully specified (name, direction, and type).