Error "Duplicate interface definition for class 'ViewController'"

Question

I'm making an app and I get the error

Duplicate interface definition for class 'ViewController'

I get this error in ViewController.h.

Here is the code I'm using when I get the error:

@interface ViewController : UIViewController <MFMailComposeViewControllerDelegate>
- (IBAction)Contact:(id)sender;

Answer 1

Please paste more code. Sometimes the errors are somewhere else. Check that you have @interface and @end and do a clean before compiling.