I'm new to windows app developing.
I created project in visual studio 2015 under visual c++ universal store app.
I added a new page from

project>add new item>xaml>basic page

I want to refer to the new page when I click a button in the main page.

my new page name is **BasicPage**

I added

#include "BasicPage.xaml.h"


and

using namespace Windows::UI::Xaml::Interop;


to the **MainPage.xaml.cpp**


and I added a button to mainpage and add this code to button click event

void Apptest_0_3::MainPage::button_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
{
if (this->Frame != nullptr)
{
this->Frame->Navigate(TypeName(BasicPage::typeid));
}

}



**How Can I fix this error?**

Thanks


http://i.stack.imgur.com/XGcj4.jpg

here is the screenshot of the error

http://i.stack.imgur.com/X4G9E.jpg