我有一个加载Microsoft.Azure.ActiveDirectory.GraphClient库的ASP.NET 4.5.2应用程序。当它尝试连接时，会发生以下错误：
System.IO.FileNotFoundException：无法加载文件或程序集'System.Net，Version = 2.0.5.0，Culture = neutral，PublicKeyToken = 7cec85d7bea7798e'或其依赖项之一。定位的程序集的清单定义与程序集引用不匹配。
File Name: "System.Net, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e"
bei System.Data.Services.Client.UriResolver.ConvertToAbsoluteUri(Uri baseUri)
bei System.Data.Services.Client.UriResolver.ConvertToAbsoluteAndValidateBaseUri(Uri& baseUri, String parameterName)
bei System.Data.Services.Client.DataServiceContext..ctor(Uri serviceRoot, DataServiceProtocolVersion maxProtocolVersion, ClientEdmModel model)
bei Microsoft.Azure.ActiveDirectory.GraphClient.Extensions.DataServiceContextWrapper..ctor(Uri serviceRoot, DataServiceProtocolVersion maxProtocolVersion, Func`1 accessTokenGetter, IEnumerable`1 customTypeMappings)
bei Microsoft.Azure.ActiveDirectory.GraphClient.ActiveDirectoryClient..ctor(Uri serviceRoot, Func`1 accessTokenGetter,...
我已经在我的web.config中添加了绑定重定向：
<configuration>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Net" publicKeyToken="7cec85d7bea7798e" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-2.0.5.0" newVersion="4.0.0.0"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
但问题仍然存在。这有什么不对？