如果选择了“检查更新”，则 ClickOnce 应用程序失败

Question

这就是我正在做的事情。我在Visual Studio 2010 下创建了简单的空白WPF 应用程序。我启用ClickOnce 部署，设置签名、安全等，并发布到本地IIS 实例。我启动浏览器，点击publish.htm 页面，它安装正确。

接下来，我把所有东西都吹走（这毕竟是测试），重新创建项目，启用 ClickOnce，签名等等，但这次我还点击属性 -> 发布上的“更新...”按钮页。我单击“应用程序应检查更新”的复选框，然后选择“应用程序启动之前”的单选按钮。我单击确定，再次将其发布到本地 IIS，然后点击 publish.htm 页面。但是，当我单击“安装”时，出现错误，“无法下载应用程序。应用程序缺少必需的文件。联系应用程序供应商寻求帮助。'。

我发现的唯一参考是application.manifest 文件中列出的一个文件丢失了，但我似乎无法确定它是什么。如果有人甚至可以简单地为我指出正确的方向，我将不胜感激。

这绝对是 404 Not Found 错误，但我不知道它指的是什么文件。这是“详细信息”页面 -

PLATFORM VERSION INFO
    Windows             : 6.1.7600.0 (Win32NT)
    Common Language Runtime     : 4.0.30319.1
    System.Deployment.dll       : 4.0.30319.1 (RTMRel.030319-0100)
    clr.dll             : 4.0.30319.1 (RTMRel.030319-0100)
    dfdll.dll           : 4.0.30319.1 (RTMRel.030319-0100)
    dfshim.dll          : 4.0.31106.0 (Main.031106-0000)

SOURCES
    Deployment url          : http://localhost/WpfApplication1/WpfApplication1.application
                        Server      : Microsoft-IIS/7.5
                        X-Powered-By    : ASP.NET
    Deployment Provider url     : http://jerrydev/WpfApplication1/WpfApplication1.application

ERROR SUMMARY
    Below is a summary of the errors, details of these errors are listed later in the log.
    * Activation of http://localhost/WpfApplication1/WpfApplication1.application resulted in exception. Following failure messages were detected:
        + Downloading http://jerrydev/WpfApplication1/WpfApplication1.application did not succeed.
        + The remote server returned an error: (404) Not Found.

COMPONENT STORE TRANSACTION FAILURE SUMMARY
    No transaction error was detected.

WARNINGS
    There were no warnings during this operation.

OPERATION PROGRESS STATUS
    * [1/13/2011 11:05:50 AM] : Activation of http://localhost/WpfApplication1/WpfApplication1.application has started.

ERROR DETAILS
    Following errors were detected during this operation.
    * [1/13/2011 11:05:50 AM] System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
        - Downloading http://jerrydev/WpfApplication1/WpfApplication1.application did not succeed.
        - Source: System.Deployment
        - Stack trace:
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
            at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
            at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
            at System.Deployment.Application.DownloadManager.DownloadManifestAsRawFile(Uri& sourceUri, String targetPath, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation)
            at System.Deployment.Application.DownloadManager.DownloadManifest(Uri& sourceUri, String targetPath, IDownloadNotification notification, DownloadOptions options, ManifestType manifestType, ServerInformation& serverInformation)
            at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestDirect(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation)
            at System.Deployment.Application.DownloadManager.FollowDeploymentProviderUri(SubscriptionStore subStore, AssemblyManifest& deployment, Uri& sourceUri, TempFile& tempFile, IDownloadNotification notification, DownloadOptions options)
            at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestBypass(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, SubscriptionState& subState, IDownloadNotification notification, DownloadOptions options)
            at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
            at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
        --- Inner Exception ---
        System.Net.WebException
        - The remote server returned an error: (404) Not Found.
        - Source: System
        - Stack trace:
            at System.Net.HttpWebRequest.GetResponse()
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)

COMPONENT STORE TRANSACTION DETAILS
    No transaction information is available.

Answer 1

您是否要发布到 localhost 并将其安装在同一台机器上？我问是因为它在 URL 中有 localhost 。您是在“更新”对话框中填写了 UpdateURL，还是将其留空？如果它应该与安装 URL 位于同一位置，则将其留空。

您的安装 URL 是什么样的？

Answer 2

我在 URL 中使用 localhost 进行所有操作（发布、安装、更新）；我发现，在“localhost”的情况下，发布过程将使用清单中的机器名称。我的问题实际上源于没有更新我的 Hosts.etc 文件以将我的机器名称映射到“localhost”。解决这个问题可以解决我安装 clickonce 应用程序以及安装后能够更新它的所有问题。