ios - Declaring a property -

i trying declare property

#import <uikit/uikit.h> #import <mediaplayer/mediaplayer.h>  @interface viewcontroller : uiviewcontroller { @property (nonatomic, strong) mpmovieplayercontroller*player; }   @end 

i receive red warning sign when click on it, reads;

a parameter list without types allowed in function definition

properties outside of braces

#import <uikit/uikit.h> #import <mediaplayer/mediaplayer.h>  @interface viewcontroller : uiviewcontroller {     // here ivars    id _something; } // properties , methods @property (nonatomic, strong) mpmovieplayercontroller*player;  @end