相关疑难解决方法(0)

我一直得到这个错误是VS2013

Could not load file or assembly 'DocumentFormat.OpenXml, Version=2.0.5022.0, Culture=neutral,PublicKeyToken = 31bf3856ad364e35'或其依赖项之一.

在我的web.config中

    <?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
    <connectionStrings>
        <add name="hjkom_med_web_udvConnectionString" connectionString="Data Source=M95;Initial Catalog=hjkom-med_web;Persist Security Info=True;User ID=HJkom-MED_web;Password=bvkeB7hh" providerName="System.Data.SqlClient"/>
    </connectionStrings>
    <system.web>
        <compilation debug="true" targetFramework="4.0">
            <assemblies>
                <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
                <add assembly="WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                **<add assembly="DocumentFormat.OpenXml, Version=2.0.5022.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>**

</assemblies></compilation>
    </system.web>
</configuration>

我试图插入windowsbase和许多其他东西.

我有搜索和搜索解决方案,任何人都知道如何解决它？