Expected a type error

问题

So I created this method:

- (void)addToViewController:(SecViewController *)controller 
      didFinishEnteringItem:(NSString *)item;` <br>

And Xcode keeps giving me Expected a type error at SecViewController *. What does that mean? SecViewController is not a type?

回答1:

You have to declare SecViewController:

@class SecViewController;

... at the top of your header.

Note: Don't just #import all used headers. This just worsens your header dependencies.

来源：https://stackoverflow.com/questions/10427410/expected-a-type-error