Fb error validating application
To get this information you can use our debug tool, or you can use the API endpoint.
The fetched images will be displayed as Image Gallery using ASP. On each image click a larger image will be displayed as Modal Popup with Light Box effect using j Query.
In this article Mudassar Ahmed Khan has explained the issue allow Definition='Machine To Application' beyond application level which occurs when you run your Website application or project in Visual Studio, its cause and solution.
Here Mudassar Ahmed Khan has explained how to fetch and import Facebook Friends and Contacts along with their profile pictures using Face Book Graph API in ASP. Here Mudassar Ahmed Khan has explain with a tutorial and example, how to get authenticate Face Book user's account and get like User Id, Profile Image, User Name, Name and Email in ASP.
The login flow your app uses for new people should determine which method you need to adopt.
When someone has de-authorized your app it should treat someone as if they are new to the app.