When I implement or synthesize a schematic design, the following message occurs:
"DesignEntry:216 Net <net_name> is connected to load pins and/or I/O markers, but not connected to any source pin or I/O marker"
This error occurs when a net is connected to load (an input pin of a symbol or to an output I/O Marker) and is not connected to a source (an output pin of a symbol or to an input I/O marker).
To remove this message, connect the net to the appropriate I/O marker, or source pin.
To change this error to a warning message:
1. Select Edit -> Preferences -> Schematic Editor -> Check.
2. Change the value of "Consider Undriven Nets and IO as" to Warning.