AIS2D_InteractiveContext

Hi all,
I am using Qt 4.2.2, OCC 6.1 ,os - windows XP.
I end up with the following error , when i try to create the object of AIS2D_InteractiveContext.

1>.\View2D.cxx(51) : error C2512: 'AIS2D_InteractiveContext' : no appropriate default constructor available
1>.\View2D.cxx(77) : error C2679: binary '=' : no operator found which takes a right-hand operand of type 'AIS2D_InteractiveContext *' (or there is no acceptable conversion)
1> c:\OpenCASCADE6.1.0\ros\inc\AIS2D_InteractiveContext.hxx(618): could be 'AIS2D_InteractiveContext &AIS2D_InteractiveContext::operator =(const AIS2D_InteractiveContext &)'
1> while trying to match the argument list '(AIS2D_InteractiveContext, AIS2D_InteractiveContext *)'
Please help me in sorting my problem.