objc_class$____ error
<p>For my application i need to work with calendar.
 <code>http://blog.webscale.co.in/?p=244</code> from this link i downloaded required stuff.....</p>

<p>related to calendar....  now i need to import it into my application.</p>

<p>Even i added all the required framework in my application. its showing me error...</p>

<p>"_OBJC_CLASS_$_CheckmarkTile", referenced from:</p>

<p>Any one help me out. What to do..</p>
