Unrecognized Selector Sent to instance while adding a subview
===

I am getting this thread while running my app.

    2012-07-10 15:44:39.668 DSSAmple[447:f803] -[cell superview]: unrecognized selector sent       to instance 0x68b4080
    2012-07-10 15:44:39.671 DSSAmple[447:f803] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[cell superview]: unrecognized selector sent to instance 0x68b4080'

'cell' is called my subclass.

In cell.h i have

    @interface cell : UIViewController
    {
    UIImage *MyImage;
    int row;
    int column;
    CGRect frame;
    }
    @property(retain,nonatomic)UIImage *MyImage;
    @property(assign,nonatomic)int row;
    @property(assign,nonatomic)CGRect frame;
    @property(assign,nonatomic)int column;
    @end
And in my calling class i have
  SIAViewcontroller.h

    #import <UIKit/UIKit.h>
    #import "cell.h"
    @interface SIAViewController : UIViewController
    -(void)PanelLoading;
    @end

In its implementation
 SIAViewController.m

    -(void)PanelLoading
    {
    UIImage *myImage=[UIImage imageNamed:@"s.jpg"];
    int x=20,y=50,r=1,c=1;
    for (int i=1; i<=8; i++) 
    {
        for (int j=1; j<=8; j++) 
            
        {
            cell *tank=[[cell alloc]init];
            tank.column=c;
            tank.row=r;
            tank.frame=CGRectMake(x, y, 35, 35);
            tank.MyImage=myImage;
            [self.view addSubview:tank];
            x+=35;
            r++;
        }
        r=1;
        c++;
        y+=35;
        x=20;
    }

    }

    - (void)viewDidLoad
    {
    [super viewDidLoad];
    [self PanelLoading];
	// Do any additional setup after loading the view, typically from a nib.
    }

   
What Would be the reason for this? Can anybody help?

    