ASP.NET 5 / Azure錯誤：FileNotFoundException：無法加載文件或程序集System.Data.SqlClient

我正在使用VS2015將ASP.NET 5應用程序部署到Azure。在瀏覽器中成功部署並打開我的網站後，我收到錯誤：

FileNotFoundException: Could not load file or assembly 'System.Data.SqlClient, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.我的項目中沒有直接引用該程序集。它是通過EntityFramework.MicrosoftSqlServer程序集的間接依賴。

我在這裡解釋過使用ASP.NET 4時出現類似的問題： 錯誤：找不到具有不變名稱'System.Data.SqlClient'的ADO.NET提供程序的實體框架提供程序名為“可怕的黑客”的解決方案對我有用。 :)

您有什麼想法可能導致問題以及如何解決問題嗎？

這是我的web app project.json的內容：

{
    "userSecretsId": "aspnet5-MyProject.Web-<A guid goes here>",
    "version": "1.0.0-*",
    "compilationOptions": {
        "emitEntryPoint": true
    },

    "dependencies": {
        "EntityFramework.Commands": "7.0.0-rc1-final",
        "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
        "Microsoft.AspNet.Authentication.Cookies": "1.0.0-rc1-final",
        "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-rc1-final",
        "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-rc1-final",
        "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
        "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
        "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final",
        "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
        "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
        "Microsoft.AspNet.Tooling.Razor": "1.0.0-rc1-final",
        "Microsoft.Extensions.CodeGenerators.Mvc": "1.0.0-rc1-final",
        "Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc1-final",
        "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
        "Microsoft.Extensions.Configuration.UserSecrets": "1.0.0-rc1-final",
        "Microsoft.Extensions.Logging": "1.0.0-rc1-final",
        "Microsoft.Extensions.Logging.Console": "1.0.0-rc1-final",
        "Microsoft.Extensions.Logging.Debug": "1.0.0-rc1-final",
        "Microsoft.Framework.CommandLineUtils.Sources": "1.0.0-beta5",
        "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-rc1-final",
        "MyProject.Data": "1.0.0-*",
        "System.Data.SqlClient": "4.0.0-beta-23516" <-- I've tried with this explicit dependency here
     },

     "commands": {
        "web": "Microsoft.AspNet.Server.Kestrel",
        "ef": "EntityFramework.Commands"
     },

     "frameworks": {
         "dnxcore50": { }
     },

     "exclude": [
        "wwwroot",
        "node_modules"
     ],
     "publishExclude": [
         "**.user",
         "**.vspscc"
     ],
     "scripts": {
        "prepublish": [ "npm install", "bower install", "gulp clean", "gulp min" ]
      }
}

以及MyProject.Web依賴的MyProject.Data項目的project.json：

{
  "version": "1.0.0-*",
  "description": "MyProject.Data Class Library",
  "authors": [ "f012rt" ],
  "tags": [ "" ],
  "projectUrl": "",
  "licenseUrl": "",
  "frameworks": {
    "dnxcore50": {
      "dependencies": {
        "Microsoft.CSharp": "4.0.1-beta-23516",
        "System.Collections": "4.0.11-beta-23516",
        "System.Linq": "4.0.1-beta-23516",
        "System.Runtime": "4.0.21-beta-23516",
        "System.Threading": "4.0.11-beta-23516"
      }
    }
  },
  "commands": {
    "ef": "EntityFramework.Commands"
  },
  "dependencies": {
    "EntityFramework.Commands": "7.0.0-rc1-final",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
    "EntityFramework.Core": "7.0.0-rc1-final",
    "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
    "System.Runtime.Serialization.Primitives": "4.1.0-beta-23516",
    "System.Data.SqlClient": "4.0.0-beta-23516" <-- I've tried with this explicit dependency here
  }
}

我已經嘗試過顯式指定缺少的依賴項，你可以從我的project.json文件中看到。我可以確認包“System.Data.SqlClient”：“4.0.0-beta-23516”在我的[approot] \ packages文件夾中。包文件夾在我的本地計算機上看起來與此完全相同。我已嘗試在新創建的Web應用程序上進行部署，以避免由舊的deplyments引起的任何事情。錯誤仍然相同。