运行YouTube Data API的示例代码时找不到命名空间

Question

我正在尝试使用youtube制作一个应用程序来直播一些视频。这个想法是在我的应用程序中播放一些视频，如果我愿意，可以使用youtube进行直播。

现在，我只是尝试运行一个简单的代码示例，上传一个视频。示例来自以下网站：https://developers.google.com/youtube/v3/code_samples/dotnet#upload_a_video

这是我的代码：

程序.cs

static class Program
{
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main()
    {
        VideoStreamTest video = new VideoStreamTest();
    }
}

VideoStreamTest.cs

使用以下功能：

using System;
using System.IO;
using System.Reflection;
using System.Threading;
using System.Threading.Tasks;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;
using Google.Apis.Upload;
using Google.Apis.Util.Store;
using Google.Apis.YouTube.v3;
using Google.Apis.YouTube.v3.Data;

我的班级：

class VideoStreamTest
{
    public VideoStreamTest()
    {
        Console.WriteLine("=================nTest Broadcast Youtuben=================");
        init();
    }
    private static void init()
    {
        Console.WriteLine("YouTube Data API: Upload Video");
        Console.WriteLine("==============================");
        try
        {
            new UploadVideo().Run().Wait();
        }
        catch (AggregateException ex)
        {
            foreach (var e in ex.InnerExceptions)
            {
                Console.WriteLine("Error: " + e.Message);
            }
        }
        Console.WriteLine("Press any key to continue...");
        Console.ReadKey();
    }
    private async Task Run()
    {
        UserCredential credential;
        using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
        {
            credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
                GoogleClientSecrets.Load(stream).Secrets,
                // This OAuth 2.0 access scope allows an application to upload files to the
                // authenticated user's YouTube channel, but doesn't allow other types of access.
                new[] { YouTubeService.Scope.YoutubeUpload },
                "user",
                CancellationToken.None
            );
        }
        var youtubeService = new YouTubeService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = credential,
            ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
        });
        var video = new Video();
        video.Snippet = new VideoSnippet();
        video.Snippet.Title = "Default Video Title";
        video.Snippet.Description = "Default Video Description";
        video.Snippet.Tags = new string[] { "tag1", "tag2" };
        video.Snippet.CategoryId = "22"; // See https://developers.google.com/youtube/v3/docs/videoCategories/list
        video.Status = new VideoStatus();
        video.Status.PrivacyStatus = "unlisted"; // or "private" or "public"
        var filePath = @"REPLACE_ME.mp4"; // Replace with path to actual movie file.
        using (var fileStream = new FileStream(filePath, FileMode.Open))
        {
            var videosInsertRequest = youtubeService.Videos.Insert(video, "snippet,status", fileStream, "video/*");
            videosInsertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
            videosInsertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;
            await videosInsertRequest.UploadAsync();
        }
    }
    void videosInsertRequest_ProgressChanged(Google.Apis.Upload.IUploadProgress progress)
    {
        switch (progress.Status)
        {
            case UploadStatus.Uploading:
                Console.WriteLine("{0} bytes sent.", progress.BytesSent);
                break;
            case UploadStatus.Failed:
                Console.WriteLine("An error prevented the upload from completing.n{0}", progress.Exception);
                break;
        }
    }
    void videosInsertRequest_ResponseReceived(Video video)
    {
        Console.WriteLine("Video id '{0}' was successfully uploaded.", video.Id);
    }
}

我已经安装了以下NuGet软件包：

谷歌.Apis.YouTube.v3

Google.Apis

但当我运行代码时，我会出现以下错误：

VideoStreamTest.cs(31,13,31,24): error CS0246: The type or namespace name 'UploadVideo' could not be found (are you missing a using directive or an assembly reference?)

我做错了什么？

Answer 1

除了源代码文件中的"using"语句外，还必须在项目的"引用"区域中添加对API程序集的引用。

Answer 2

在我的情况下，当我复制&粘贴'使用Google.Apis.YouTube.v3；'出现了一个错误，但是直接用键盘打字错误就消失了。