how to resolve the issue: “'Instance method '-arrayByPerformingSelector:' not found (return type defaults to 'id')”

Question

i saw in one post -(id)arrayByPerformingSelector declaration in interface should do , but when i tried it this declaration was treated as separate method and in

Answer 1

I checked the iOS SDK and couldn't find a method with that name. Considering it is making the app crash... there isn't a method with that name.

If you get that same type of warning and your app works fine, my answer here would be relevant

I don't know if you got started on this SO question: Implementing my own navigation controller?, but the accepted answer there references a blog.

Researching that, you will need to:
• download NSArray+PerformSelector.h and NSArray+PerformSelector.m from here
• add them to your xcode project
• add #import "NSArray+PerformSelector.h" to the .m file you are experiencing your crash in.