I need some help please. I have built my program but I am seeing some codes being thrown that I can't figure out how to solve. If I can get some help looking over the code and how to fix it, I'd greatly appreciate.

Bicycle.java:[48,4] method does not override or implement a method from a supertype

TestFootPrint.java:[23,30] incompatible types: Building cannot be converted to CarbonFootprint TestFootPrint.java:[24,30] incompatible types: Car cannot be converted to CarbonFootprint TestFootPrint.java:[25,30] incompatible types: Bicycle cannot be converted to CarbonFootprint Building.java:[57,4] method does not override or implement a method from a supertype Car.java:[65,4] method does not override or implement a method from a supertype 6 errors

Not sure why this isn't working. any help would be greatly appreciated - will post full code if need be.