ID:21123 Input port <name> of <name> atom "<name>" has illegal fan-in from output port <name> of atom "<name>". The input port can be driven only by <text>.

CAUSE: The specified atom has the specified input port, but the input port is connected to an invalid source port. The input port can be driven by only the specified source port.

ACTION: Either disconnect the input port of the specified atom or connect it to a valid source port.