[reSIProcate] Also get this error...

[John Draper]

Code shown below.....

#include <Carbon/Carbon.h>
#include "resiprocate/dum/DialogUsageManager.hxx"

namespace resip
{
   // class ClientRegistrationHandler;
   class SipClient : public ClientRegistrationHandler
{          <------    resip::ClientRegistrationHandler' has incomplete type

   public:
       SipClient();
       ~SipClient();
              bool done;
       bool removing;      };

}   // end of namespace

<----- end ----->

What do they mean by an incomplete type?  can someone explain this please?

John