Problem with uibutton in UItableViewCell

[nithiniz]

In my application, i'm using a customised table. Each cell have an uibutton and uiimage. When a touch up accurs at the button, i want to call the uiimagepickercontroller method to select a picture from the iphone library and display it in the image view. I've written it but getting a warning... 'customCell' may not respond to presentmodalviewcontroller animated... here customCell is the subclass of my main class, myApp, also the name of the nib of the custom cell. Anyone knows the issue???? Thanks...