无法加载文件或程序集 System.Web.Mvc 或其依赖项之一

Question

目前正在研究 asp.net mvc5（旧的 mvc3 项目）。它构建得很好，但是当我启动项目但是当我运行该项目时，我面临以下错误。

Could not load file or assembly 'System.Web.Mvc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

不确定如何解决这个问题，有什么想法吗？

这是程序集加载轨迹：

=== Pre-bind state information ===
LOG: DisplayName = System.Web.Mvc
 (Partial)
WRN: Partial binding information was supplied for an assembly:
WRN: Assembly Name: System.Web.Mvc | Domain ID: 2
WRN: A partial bind occurs when only part of the assembly display name is provided.
WRN: This might result in the binder loading an incorrect assembly.
WRN: It is recommended to provide a fully specified textual identity for the assembly,
WRN: that consists of the simple name, version, culture, and public key token.
WRN: See whitepaper http://go.microsoft.com/fwlink/?LinkId=109270 for more information and common solutions to this issue.
LOG: Appbase = file:///C:/Users/joaki/Source/Repos/2015-TimeAdministration/Source/V2/SalesWeb2/TimeReportV2/
LOG: Initial PrivatePath = C:\Users\joaki\Source\Repos15-TimeAdministration\Source\V2\SalesWeb2\TimeReportV2\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Users\joaki\Source\Repos15-TimeAdministration\Source\V2\SalesWeb2\TimeReportV2\web.config
LOG: Using host configuration file: C:\Users\joaki\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Attempting download of new URL file:///C:/Users/joaki/AppData/Local/Temp/Temporary ASP.NET Files/root/a90c5137/552c494a/System.Web.Mvc.DLL.
LOG: Attempting download of new URL file:///C:/Users/joaki/AppData/Local/Temp/Temporary ASP.NET Files/root/a90c5137/552c494a/System.Web.Mvc/System.Web.Mvc.DLL.
LOG: Attempting download of new URL file:///C:/Users/joaki/Source/Repos/2015-TimeAdministration/Source/V2/SalesWeb2/TimeReportV2/bin/System.Web.Mvc.DLL.
LOG: Using application configuration file: C:\Users\joaki\Source\Repos15-TimeAdministration\Source\V2\SalesWeb2\TimeReportV2\web.config
LOG: Using host configuration file: C:\Users\joaki\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Redirect found in application configuration file: 4.0.0.1 redirected to 5.2.3.0.
LOG: Post-policy reference: System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
LOG: Attempting download of new URL file:///C:/Users/joaki/AppData/Local/Temp/Temporary ASP.NET Files/root/a90c5137/552c494a/System.Web.Mvc.DLL.
LOG: Attempting download of new URL file:///C:/Users/joaki/AppData/Local/Temp/Temporary ASP.NET Files/root/a90c5137/552c494a/System.Web.Mvc/System.Web.Mvc.DLL.
LOG: Attempting download of new URL file:///C:/Users/joaki/Source/Repos/2015-TimeAdministration/Source/V2/SalesWeb2/TimeReportV2/bin/System.Web.Mvc.DLL.
WRN: Comparing the assembly name resulted in the mismatch: Major Version
ERR: Failed to complete setup of assembly (hr = 0x80131040). Probing terminated.

网络配置：

    <?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=301880
  -->
<configuration>
    <connectionStrings>
    <add name="SaleswebEntities" connectionString= ""/>
  </connectionStrings>

<appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>

  <system.web>
    <compilation debug="true" targetFramework="4.5.1" >
      <assemblies>
        <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      </assemblies>
    </compilation>

  <authentication mode="Forms">
    <forms loginUrl="~/Account/LogOn" timeout="2880" />
  </authentication>

  <membership>
    <providers>
      <clear />
      <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
    </providers>
  </membership>

  <profile>
    <providers>
      <clear />
      <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" />
    </providers>
  </profile>

  <roleManager enabled="false">
    <providers>
      <clear />
      <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
      <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
    </providers>
  </roleManager>

  <pages>
    <namespaces>
      <add namespace="System.Web.Mvc" />
      <add namespace="System.Web.Mvc.Ajax" />
      <add namespace="System.Web.Mvc.Html" />
      <add namespace="System.Web.Routing" />
      <add namespace="System.Web.Helpers" />
      <add namespace="System.Web.WebPages" />
    </namespaces>
  </pages>
  </system.web>

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true" />
  </system.webServer>

  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" />
        <bindingRedirect oldVersion="0.0.0.0-7.0.0.0" newVersion="7.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-1.6.5135.21930" newVersion="1.6.5135.21930" />
      </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.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="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>

</configuration>

Answer 1

你可以 post 你的 web.config 文件吗？看来你在较新的环境中打开了一个 mvc3 项目，你的IDE（即Visual Studio）的迁移功能不能正常工作。 System.Web.Mvc.DLL 的版本不匹配（配置文件和 bin/ 目录中的版本）。有两种方法可以解决这个问题： 1、修改config文件中System.Web.Mvcpackage/assembly的版本。 2. 将 System.Web.Mvc.dll 从您的旧项目复制到新项目（bin/ 文件夹）。

我以前遇到过其他 .dll 文件的类似问题。当时我选择删除所有.dll文件，使用NuGet Package Manager重新下载。

Answer 2

如果您仔细阅读您发布的融合日志，它会为您提供所需的信息。我会把它精简到重要的几行。

LOG: Attempting download of new URL file:///C:/Users/joaki/Source/Repos/2015-TimeAdministration/Source/V2/SalesWeb2/TimeReportV2/bin/System.Web.Mvc.DLL.

该应用正在寻找 System.Web.Mvc.dll。它已将其解析为您的网络应用程序的 bin 文件夹下的那个：C:\Users\joaki\Source\Repos15-TimeAdministration\Source\V2\SalesWeb2\TimeReportV2\bin\System.Web.Mvc.DLL

接下来，它会检查您的 web.config 中是否存在该 DLL 的任何程序集绑定重定向，并找到一个：

LOG: Using application configuration file: C:\Users\joaki\Source\Repos15-TimeAdministration\Source\V2\SalesWeb2\TimeReportV2\web.config
LOG: Redirect found in application configuration file: 4.0.0.1 redirected to 5.2.3.0.
LOG: Post-policy reference: System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35

如果你查看你的web.config，会有这样的东西：

  <dependentAssembly>
    <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
    <bindingRedirect oldVersion="1.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
  </dependentAssembly>

然后检查它在您的应用程序的 bin 目录中找到的 System.Web.Mvc.dll 是否是同一版本：

WRN: Comparing the assembly name resulted in the mismatch: Major Version
ERR: Failed to complete setup of assembly (hr = 0x80131040). Probing terminated.

它抱怨主要版本不匹配。这是 4 位数字版本中的第一个数字。如果您返回日志，那是因为您的 bin 文件夹中的 System.Web.Mvc.dll 实际上是版本 4.0.0.1，而不是所需的 5.2.3.0:

LOG: Redirect found in application configuration file: 4.0.0.1 redirected to 5.2.3.0.

您需要检查您的解决方案以确保所有引用 System.Web.Mvc 的项目都在寻找相同的最新版本。如果您查看错误列表中的警告，您可能会发现有关此程序集版本不匹配的警告。

更新参考资料

一种解决方案是右键单击 Visual Studio 中的解决方案，选择 "Manage NuGet Packages for Solution..." 并尝试更新项目以使用相同版本的 System.Web.Mvc。

如果您事先清除您的 bin 文件夹，这也会有所帮助。

您也可以使用包管理器控制台来更新您的解决方案中的包：

Update-Package Microsoft.AspNet.Mvc -version 5.2.3.0

Answer 3

我不确定这是否有帮助。但我也收到了这条消息：

Could not load file or assembly 'System.Web.Mvc (1)' or one of its dependencies ...

我真的不知道为什么，但是当我查看 Web 应用程序的 bin 文件夹时，一些 DLL 文件有重复项，例如“System.Web.Mvc(1).dll”等等。

我所做的是，我删除了所有重复文件 （文件名带有“(1)”或“(2)”...），然后重建网络应用程序又工作了

无法加载文件或程序集 System.Web.Mvc 或其依赖项之一

Could not load file or assembly System.Web.Mvc or one of its dependencies

c#

asp.net

asp.net-mvc

asp.net-mvc-3

asp.net-mvc-5

更新参考资料