Question

使用nuget

将mvc框架更新到5.2.2.0后出现此错误

[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，版本= 2.0.0.0， Culture = neutral，PublicKeyToken = 31bf3856ad364e35＆＃39;在上下文中＆＃39;默认＆＃39;在位置＆＃39; 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＆＃39 ;. 类型B源自＆＃39; System.Web.WebPages.Razor，Version = 3.0.0.0， Culture = neutral，PublicKeyToken = 31bf3856ad364e35＆＃39;在上下文中＆＃39;默认＆＃39;在位置＆＃39; C：\ Windows \ Microsoft.NET \ Framework \ v4.0.30319 \ Temporary ASP.NET 文件\ VS \ 36d3424f \ d8d844c3 \组件\ DL3 \ a0b68557 \ 24516c31_ea0dd001 \ System.Web.WebPages.Razor.dll＆＃39;

在web.config

上

<appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
  ...
  </appSettings>

    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
              <probing privatePath="Plugins/bin/" />
              <dependentAssembly>
                <assemblyIdentity name="FluentValidation" publicKeyToken="a82054b837897c66" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-3.4.0.0" newVersion="3.4.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="Autofac" publicKeyToken="17863af14b0044da" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-3.5.0.0" newVersion="3.5.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-1.6.5135.21930" newVersion="1.6.5135.21930" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="Antlr3.Runtime" publicKeyToken="eb42632606e9261f" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-3.5.0.2" newVersion="3.5.0.2" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-5.2.2.0" newVersion="5.2.2.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="System.Web.Http" publicKeyToken="31bf3856ad364e35" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-5.2.2.0" newVersion="5.2.2.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="System.Web.Http.WebHost" publicKeyToken="31bf3856ad364e35" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-5.1.0.0" newVersion="5.1.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
              </dependentAssembly>
              <dependentAssembly>
                <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="0.0.0.0-5.2.2.0" newVersion="5.2.2.0" />
              </dependentAssembly>
            </assemblyBinding>
</runtime>

Answer 1

我们有同样的问题。通过应用两个修复解决： 1）有2个web.config文件。需要在Root和View web.config文件中更改它。 2）需要检查appsettings并检查下面的webpages标签。

Answer 2

更详细地跟进Ashish的回答

在Views文件夹中查找web.config（不是root web.config），并在下面将 2.0.0.0 更改为 3.0.0.0 ：

...
<configSections>
     ...
     <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
       <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
       <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
       ...
     </sectionGroup>
     ...
</configSections>
...

您可能还需要删除（在system.web.webPages.razor \ pages命名空间内）：

<add namespace="System.Web.Optimization"/>

...因为nuget软件包也没有理由重新加入。

Answer 3

我遇到了这个错误，唯一修复它的是安装Microsoft .NET Framework 4.5.2（脱机安装程序） https://www.microsoft.com/en-us/download/details.aspx?id=42642

我之前也安装了SQL Server 2014客户端工具，这也可能通过安装较新的msxml 6.0版本产生了积极影响。

我的错误消息是：

[A] xx.xxxx.ClassUserDS无法转换为[B] xx.xxxx.ClassUserDS。类型A源自'yyyyyy，Version = 3.0.5617.31787，Culture = neutral，PublicKeyToken = 657d68e01eb7c911'，位于'默认'位置'C：\ Users \ xxxxx \ Appdata \ Local \ assembly \ dl3 \ QQ3VBMNC.EO1 \ VYVECOB7 .H5J \ 2b6c89d2 \ 51158eea_9892d001 \ yyyyyy.DLL”。从'yyyyyy，Version = 3.0.5617.31787'中的'Loadyither'上下文中键入B orginates'C：\ Users \ xxxxx \ Appdata \ Local \ Microsoft \ InfoPath \ FormCache4 \ 30083E69.D18 \ cd264661b1055c58 $ b04f2786908cb791 \ yyyyyy.dll

我尝试查看注册表HKCU \ Software \ Microsoft \ Fusion \我只能看到错误消息中提到的路径，但仍然很有趣。

[A] System.Web.WebPages.Razor.Configuration.HostSection无法强制转换为[B] System.Web.WebPages.Razor.Configuration.HostSection

3 个答案: