A first chance exception of type 'System.IO.FileLoadException' occurred in Unknown Module.

Hiii...
I was doing FacebookIntegration App.Trying it from many dayss...Can anybody please help me with the below error.It was raising in FacebookLoginPage....
A first chance exception of type 'System.IO.FileLoadException' occurred in Unknown Module.
My code is
namespace tori.Pages
public partial class FacebookLoginPage : PhoneApplicationPage
public FacebookLoginPage()
InitializeComponent();
this.Loaded += FacebookLoginPage_Loaded;
async void FacebookLoginPage_Loaded(object sender, RoutedEventArgs e)
if (!App.isAuthenticated)
App.isAuthenticated = true;
await Authenticate();
private FacebookSession session;
private async Task Authenticate()
string message = String.Empty;
try
session = await App.FacebookSessionClient.LoginAsync("user_about_me,read_stream,publish_stream,publish_actions");
App.AccessToken = session.AccessToken;
App.FacebookId = session.FacebookId;
Dispatcher.BeginInvoke(() => NavigationService.Navigate(new Uri("/Pages/LandingPage.xaml", UriKind.Relative)));
catch (InvalidOperationException e)
message = "Login failed! Exception details: " + e.Message;
MessageBox.Show(message);
While I was debugging error was raising in this line
App.FacebookSessionClient.LoginAsync("user_about_me,read_stream,publish_stream,publish_actions");
While running the App in device I was getting the above error.
And while running the app in emulator I was facing the below error
A first chance exception of type 'System.TypeLoadException' occurred in System.Windows.dll
Additional information: File or assembly name 'System.Threading.Tasks, Version=1.5.10.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A', or one of its dependencies, was not found.
I am unable to understand what to solve and which is the reason also.
Can anybody please help me in rectifying it...
Many Thanks in advance..

Hi venukoti,
Are you using Facebook SDK for helping with feature implementation?
Looks like your app does not have dependencies installed. Please try to re-install the Facebook SDK to see if the same thing happens.
I would recommend you ask Facebook:
http://facebooksdk.net/docs/windows/ also
https://developers.facebook.com/tools-and-support/ for more sufficient suggestions.
Thanks for your understanding.
--James
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter,
SerializationBinder binder)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
at System.Runtime.Remoting.Channels.CrossAppDomainSerializer.SerializeObject(Object obj, MemoryStream stm)
at System.AppDomain.Serialize(Object o)
at System.AppDomain.MarshalObject(Object o)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)

Hi,
The forum is main about installation problem of .NET Framework. Your problem is out of support in the forum. You should post your thread to the forum:
https://social.msdn.microsoft.com/Forums/en-US/clr/threads
Best Wishes!
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A first chance exception of type 'System.IO.FileLoadException' occurred in Unknown Module.

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