Non fan image needs post thumbnail support

[jeherve]

I added support to the post thumbnails for the custom post type, but support needs to be added for the post thumbnails in general for it to work. Something like that should do the trick

// Register thumbnails
add_theme_support( 'post-thumbnails' );
if ( function_exists( 'add_image_size' ) ) {
    add_image_size( 'fb-nonfans', 520, 2000, true ); // Facebook applications thumbnails
}