diff -r 969092730d34 -r edb9dc8273d9 smf/inc/smfplugins/base/smfproviderbase.h
--- a/smf/inc/smfplugins/base/smfproviderbase.h	Thu Apr 15 15:40:08 2010 +0530
+++ b/smf/inc/smfplugins/base/smfproviderbase.h	Thu Apr 22 15:18:37 2010 +0530
@@ -41,7 +41,6 @@
 class SmfProviderBase : public QObject
 	{
 	Q_OBJECT
-
 public:
 	/**
 	 * Constructor with default argument
@@ -159,4 +158,7 @@
 QDataStream &operator>>( QDataStream &aDataStream, 
 		SmfProviderBase &aProviderBase);
 
+// Make the class SmfProviderBase known to QMetaType, so that as to register it.
+Q_DECLARE_METATYPE(SmfProviderBase)
+
 #endif /* SMFPROVIDERBASE_H_ */