title: Tweetsharp - Oauthaccestoken overflowexception
body: <p>I've been stuck for a while on the following problem when I debug the following code:</p>
  
  <pre><code>        TwitterService service = new TwitterService("_consumerkey", "_consumersecret");
  
          OAuthRequestToken requestToken = service.GetRequestToken();
  
          Uri uri = service.GetAuthorizationUri(requestToken);
          Process.Start(uri.ToString());
  
          Console.Write("Verificatiecode? ");
          string verifier = Console.ReadLine();
          OAuthAccessToken access = service.GetAccessToken(requestToken, verifier);
  
          service.AuthenticateWith(access.Token, access.TokenSecret);
  
          TwitterUser twitterUser = service.GetUserProfile(new GetUserProfileOptions());
  
          ListFriendsOptions friends_options = new ListFriendsOptions();
          friends_options.UserId = twitterUser.Id;
          friends_options.Cursor = -1;
  
          var friends = service.ListFriends(friends_options);
  
          do
          {
              if (friends_options.Cursor != null)
              {
                  foreach (var friend in friends) {Console.WriteLine(friend.ScreenName);}
                  friends_options.Cursor = friends.NextCursor;
              }
  
          } while (friends_options.Cursor != null);
  
          Console.ReadKey(true);
  </code></pre>
  
  <p>I always get an overflow exception after filling in the verification code here:</p>
  
  <pre><code>        OAuthAccessToken access = service.GetAccessToken(requestToken, verifier);
  </code></pre>
  
  <p>Anyone who can help me?</p>
  
  <p>Thanks in advance</p>