Use of Undeclared identifier "initwithnibname" and "receivememorywarning"

Hey guys,

Sorry if this is a nooby question but I just started using xcode and following some tutorials online, but I came across this error in the .m file: Use of undeclared identifier "initWithNibName" and the same thing for "RecieveMemoryMorning". I never put them in the .m file and they came like that so I'm wondering what's up with it.


This was the tut I was following:https://www.youtube.com/watch?v=1T2wKEFKmYM