Facing issue while migrating 2010 visual studio to 2015 visual studio.any help would be appreciated.
class ATL_NO_VTABLE CWebHostCls : public CComObjectRootEx<CComSingleThreadModel>, public CComCoClass<CWebHostCls , &CLSID_WEBDialog>, public IDispatchImpl<ICWebHostCls , &IID_ICWebHostCls, &LIBID_WEBHOST>, public IObjectSafetyImpl<CWebHostCls , INTERFACESAFE_FOR_UNTRUSTED_CALLER>,#ifndef _ATL_NO_DOCHOSTUIHANDLER public IDocHostUIHandler#endif> "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\atlcom.h(3578): > error C2259: 'ATL::CComContainedObject<contained>': cannot instantiate abstract class> with> [> contained=ATL::CAxHostWindow> ]"> "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\atlcom.h(3578): note: due to following members:> C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\atlcom.h(3578): note: 'HRESULT IAxWinAmbientDispatch::put_AllowWindowlessActivation(VARIANT_BOOL)': is abstract> C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\atliface.h(1501): note: see declaration of 'IAxWinAmbientDispatch::put_AllowWindowlessActivation'> C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\atlcom.h(3578): note: 'HRESULT IAxWinAmbientDispatch::get_AllowWindowlessActivation(VARIANT_BOOL *)': is abstract"> > ```