Question

我有一个asp.net MVC3项目我按照本教程升级到asp.net mvc4： http://www.asp.net/whitepapers/mvc4-release-notes#_Toc303253806

执行项目时出现以下错误

[A] System.Web.WebPages.Razor.Configuration.HostSection无法投射到[B] System.Web.WebPages.Razor.Configuration.HostSection。 A型源自'System.Web.WebPages.Razor，Version = 1.0.0.0，在上下文中，Culture = neutral，PublicKeyToken = 31bf3856ad364e35' 位置处的“默认” 'C：\ WINDOWS \ Microsoft.Net \装配\ GAC_MSIL \ System.Web.WebPages.Razor \ v4.0_1.0.0.0__31bf3856ad364e35 \ System.Web.WebPages.Razor.dll'。类型B源自'System.Web.WebPages.Razor，Version = 2.0.0.0，在上下文中，Culture = neutral，PublicKeyToken = 31bf3856ad364e35' 位置处的“默认” 'C：\的Windows \ Microsoft.Net \组件\ GAC_MSIL \ System.Web.WebPages.Razor \ v4.0_2.0.0.0__31bf3856ad364e35 \ System.Web.WebPages.Razor.dll'

Answer 1

可在此处找到分步说明： http://www.asp.net/whitepapers/mvc4-release-notes#_Toc303253806

具体而言，您对在web.config中绑定重定向感兴趣。

  <dependentAssembly>
    <assemblyIdentity name="System.Web.WebPages" 
         publicKeyToken="31bf3856ad364e35" />
    <bindingRedirect oldVersion="1.0.0.0" newVersion="2.0.0.0"/>
  </dependentAssembly>

并且不要忘记将以下内容添加到<appSettings>

  <add key="webpages:Version" value="2.0.0.0" />

Answer 2

如果从mvc3升级到mvc 4，请将Views文件夹中的web配置更改为以下代码

<configuration>
  <configSections>
    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    </sectionGroup>
  </configSections>

  <system.web.webPages.razor>
    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <pages pageBaseType="System.Web.Mvc.WebViewPage">
      <namespaces>
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
      </namespaces>
    </pages>
  </system.web.webPages.razor>
<pages
        validateRequest="false"
        pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
        pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
        userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <controls>
        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" namespace="System.Web.Mvc" tagPrefix="mvc" />
      </controls>
    </pages>
  </system.web>

将ASP.NET MVC 3项目升级到ASP.NET MVC 4

2 个答案: