What is the difference between @class and #import

Question

When I compile with the following code there are no errors:

@class RootViewController;
//#import \"RootViewController.h\"

When I compile wi

Answer 1

@class means that the definition of the class RootViewController is not yet declared, but will be defined at run time. I believe it is like declaring an extern class in c++.

#import is equivalent to #include.

by the error message i could guess you just made a mistake somewhere inside RootViewController.h, such as a forgotten ; or something like that