Warning (275014): INPUTC, OUTPUTC and BIDIRC pins not supported for pin "<name>"

Description

You may see this warning in the Quartus® Prime software when you open a MAX PLUS II Graphic Design File (.gdf) or edited the GDF outside of the Quartus Prime software.

The specified INPUTC, OUTPUTC, or BIDIRC pin is not supported in the Quartus Prime software. The Compiler will treat the pin as an INPUT, OUTPUT, or BIDIR pin 

To avoid receiving this message, change the pin to a INPUT, OUTPUT, or BIDIR pin.