I'm learning to create a image app with Nokia Image SDK.But I meet some questions.I do as on tutorial.I use same code as tutorial.I don't know why it can't debug.

public partial class MainPage : PhoneApplicationPage
{
private FilterEffect _cartoonEffect = null;

private WriteableBitmap _cartoonImageBitmap = null;
private WriteableBitmap _thumbnailImageBitmap = null;
}

Error list display:Member names can't be the same as their enclosing type

If I chage member name,the code behind is not recognized.