Let's begin by migrating the OnNavigationFailed event handler. Copy the declaration and the definition of that member function from the source project, and paste it into the target project (in App.xaml.h and App.xaml.cpp).
Let's begin by migrating the OnNavigationFailed event handler. Copy the declaration and the definition of that member function from the source project, and paste it into the target project (in App.xaml.h and App.xaml.cpp).