IVshierarchy is not IVsProject in VS2012

In VS2005, Vs2008 and VS2010, I could use the following line of code

Note: hierarchy is an object of IVsHierarchy and is the hierarchy of the project file

IVsProject currentProject = hierarchy as IVsProject;

            if (currentProject == null)
                return;

//Other code

and it used go to the "Other code". That means IVsHierarchy of a project file will be a IVsProject.

But this seems to be not working in VS2012. Please help!