无法加载文件或程序集“ System.Configuration，版本= 4.0.0.0，区域性=中性，PublicKeyToken = b03f5f7f11d50a3a”或其依赖项之一

Question

我目前正在使用Mac上的Visual Studio 2017进行项目。 该应用程序是带有Xamarin的iOS和android原生C＃Multiplatform应用程序。

我正在尝试使用通过NuGet安装的软件包Microsoft.Azure.DocumentDB与Microsoft Azure提供的CosmosDB数据库进行交互

在初始化我的客户端时，使用与getting started tutorial中的示例相同的方式

new DocumentClient(new Uri(EndpointUrl), PrimaryKey);

但是，在内部，我得到了例外

Could not load file or assembly 'System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.

我是Visual Studio的新手，我想知道是什么导致了此问题。安装的另一个软件包是“ Microsoft.Azure.Devices” 我是否必须添加此程序包才能将此dll添加到我的引用中？如果可以，我在哪里可以找到它？

这是“ packages.config”文件

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Microsoft.Azure.Amqp" version="2.3.2" targetFramework="xamarinios10" />
  <package id="Microsoft.Azure.Devices" version="1.16.0" targetFramework="xamarinios10" />
  <package id="Microsoft.Azure.Devices.Shared" version="1.15.0" targetFramework="xamarinios10" />
  <package id="Microsoft.Azure.DocumentDB" version="1.22.0" targetFramework="xamarinios10" />
  <package id="Microsoft.CSharp" version="4.5.0" targetFramework="xamarinios10" />
  <package id="Microsoft.NETCore.Platforms" version="2.1.0" targetFramework="xamarinios10" />
  <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="xamarinios10" />
  <package id="NETStandard.Library" version="2.0.3" targetFramework="xamarinios10" />
  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="xamarinios10" />
  <package id="System.AppContext" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Collections" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.ComponentModel.TypeConverter" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Console" version="4.3.1" targetFramework="xamarinios10" />
  <package id="System.Diagnostics.Debug" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Diagnostics.Tools" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Diagnostics.Tracing" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Globalization" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Globalization.Calendars" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.IO" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.IO.Compression" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.IO.Compression.ZipFile" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.IO.FileSystem" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.IO.FileSystem.Primitives" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Linq" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Linq.Expressions" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Net.Http" version="4.3.3" targetFramework="xamarinios10" />
  <package id="System.Net.Primitives" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Net.Sockets" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Net.WebSockets.Client" version="4.3.2" targetFramework="xamarinios10" />
  <package id="System.ObjectModel" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Reflection" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Reflection.Extensions" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Reflection.Primitives" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Resources.ResourceManager" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.Extensions" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.Handles" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.InteropServices" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.InteropServices.RuntimeInformation" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.Serialization.Formatters" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Runtime.Serialization.Primitives" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Security.Cryptography.Algorithms" version="4.3.1" targetFramework="xamarinios10" />
  <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Security.Cryptography.X509Certificates" version="4.3.2" targetFramework="xamarinios10" />
  <package id="System.Text.Encoding" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Threading" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Threading.Tasks" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Threading.Timer" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Xml.ReaderWriter" version="4.3.1" targetFramework="xamarinios10" />
  <package id="System.Xml.XDocument" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Xml.XmlDocument" version="4.3.0" targetFramework="xamarinios10" />
  <package id="System.Configuration.ConfigurationManager" version="4.5.0" targetFramework="xamarinios10" />
  <package id="System.Security.AccessControl" version="4.5.0" targetFramework="xamarinios10" />
  <package id="System.Security.Permissions" version="4.5.0" targetFramework="xamarinios10" />
  <package id="System.Security.Principal.Windows" version="4.5.0" targetFramework="xamarinios10" />
</packages>

Answer 1

事实证明Microsoft.Azure.DocumentDB与Xamarin不兼容。如果我们改用Microsoft.Azure.DocumentDB.Core

，一切都会正常

Answer 2

如Jason所说，您可以尝试安装System.Configuration.ConfigurationManager以确保Configuration包含ConfigurationManager属性。

如果您在Mac上使用VS，则当前需要使用文本编辑器在PackageReference中手动添加一个.csproj。

<ItemGroup>
    <PackageReference Include="Xamarin.Forms" Version="2.4.0.280" />
</ItemGroup>

有关更多详细信息，您可以参考此discussion。