c #: google drive: google apis.services il vous manque un assembly ou une référence

J’essaie d’utiliser google.drive pour .net à l’aide de l’exemple Quickstart. J’ai installé les DLL via Nuget, mais je reçois le message d’erreur suivant: il me manque une référence ou un ensemble pour google.apis.service. Toute aide serait appréciée

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using DotNetOpenAuth.OAuth2; using Google.Apis.Authentication.OAuth2; using Google.Apis.Authentication.OAuth2.DotNetOpenAuth; using Google.Apis.Drive.v2; using Google.Apis.Drive.v2.Data; using Google.Apis.Util; using Google.Apis.Services; public partial class Default3 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { Ssortingng CLIENT_ID = "some_id"; Ssortingng CLIENT_SECRET = "some_secret"; // Register the authenticator and create the service var provider = new NativeApplicationClient(GoogleAuthenticationServer.Description, CLIENT_ID, CLIENT_SECRET); var auth = new OAuth2Authenticator(provider, GetAuthorization); var service = new DriveService(new BaseClientService.Initializer() { Authenticator = auth }); File body = new File(); body.Title = "My document"; body.Description = "A test document"; body.MimeType = "text/plain"; byte[] byteArray = System.IO.File.ReadAllBytes("document.txt"); System.IO.MemoryStream stream = new System.IO.MemoryStream(byteArray); FilesResource.InsertMediaUpload request = service.Files.Insert(body, stream, "text/plain"); request.Upload(); File file = request.ResponseBody; Console.WriteLine("File id: " + file.Id); Console.WriteLine("Press Enter to end this process."); Console.ReadLine(); } private static IAuthorizationState GetAuthorization(NativeApplicationClient arg) { // Get the auth URL: IAuthorizationState state = new AuthorizationState(new[] { DriveService.Scopes.Drive.GetSsortingngValue() }); state.Callback = new Uri(NativeApplicationClient.OutOfBandCallbackUrl); Uri authUri = arg.RequestUserAuthorization(state); // Request authorization from the user (by opening a browser window): Process.Start(authUri.ToSsortingng()); Console.Write(" Authorization Code: "); ssortingng authCode = Console.ReadLine(); Console.WriteLine(); // Resortingeve the access token by using the authorization code: return arg.ProcessUserAuthorization(authCode, state); } } 

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