c# - 运行时错误 : Could not load file or assembly 'System. Web.WebPages.Razor，版本=3.0.0.0

Question

我通过 NuGet 修改了 ASP.NET MVC4 包，现在 System.Web.WebPages.Razor v3 无法加载。有时其他包也不会加载。

我的同事运行该解决方案没有任何问题，因此问题肯定是我的开发系统上的配置(而不是已 checkin 的任何内容)。

我已经尝试过各种 SOf 和其他论坛链接中的建议，包括:

• Could not load file or assembly 'System.Web.WebPages.Razor, Version=2.0.0.0,
• Could not load file or assembly 'System.Web.WebPages.Razor, Version=2.0.0.0
• Could not load file or assembly 'System.Web.WebPages.Razor, Version=3.0.0.0

以及从那里链接的建议。我还检查了控制面板，发现没有安装引用 MVC 的程序。 (如果重要的话，我正在运行 MS Win 7 SP 1。)

我愿意接受任何和所有建议。

这是我的核心转储信息:

Server Error in '/' Application.

Could not load file or assembly 'System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of

the exception can be identified using the exception stack trace below.

Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web.WebPages.Razor,

Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.

=== Pre-bind state information === LOG: User = CodesWithHammer LOG: DisplayName = System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 (Fully-specified) LOG: Appbase = file:///c:/users/CodesWithHammer/documents/visual studio 2012/Projects/MPP/MPP/ LOG: Initial PrivatePath = c:\users\CodesWithHammer\documents\visual studio 2012\Projects\MPP\MPP\bin Calling assembly : Microsoft.Web.WebPages.OAuth, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35.

=== LOG: This bind starts in default load context. LOG: Using application configuration file: c:\users\CodesWithHammer\documents\visual studio 2012\Projects\MPP\MPP\web.config LOG: Using host configuration file: C:\Users\CodesWithHammer\Documents\IISExpress\config\aspnet.config LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config. LOG: Post-policy reference: System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 LOG: Attempting download of new URL file:///C:/Users/CodesWithHammer/AppData/Local/Temp/Temporary ASP.NET Files/root/5bf3ca07/f960d9c5/System.Web.WebPages.Razor.DLL. LOG: Attempting download of new URL file:///C:/Users/CodesWithHammer/AppData/Local/Temp/Temporary ASP.NET Files/root/5bf3ca07/f960d9c5/System.Web.WebPages.Razor/System.Web.WebPages.Razor.DLL. LOG: Attempting download of new URL file:///c:/users/CodesWithHammer/documents/visual studio 2012/Projects/MPP/MPP/bin/System.Web.WebPages.Razor.DLL. LOG: Attempting download of new URL file:///c:/users/CodesWithHammer/documents/visual studio 2012/Projects/MPP/MPP/bin/System.Web.WebPages.Razor/System.Web.WebPages.Razor.DLL. LOG: Attempting download of new URL file:///C:/Users/CodesWithHammer/AppData/Local/Temp/Temporary ASP.NET Files/root/5bf3ca07/f960d9c5/System.Web.WebPages.Razor.EXE. LOG: Attempting download of new URL file:///C:/Users/CodesWithHammer/AppData/Local/Temp/Temporary ASP.NET Files/root/5bf3ca07/f960d9c5/System.Web.WebPages.Razor/System.Web.WebPages.Razor.EXE. LOG: Attempting download of new URL file:///c:/users/CodesWithHammer/documents/visual studio 2012/Projects/MPP/MPP/bin/System.Web.WebPages.Razor.EXE. LOG: Attempting download of new URL file:///c:/users/CodesWithHammer/documents/visual studio 2012/Projects/MPP/MPP/bin/System.Web.WebPages.Razor/System.Web.WebPages.Razor.EXE.

Stack Trace:

[FileNotFoundException: Could not load file or assembly 'System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral,

PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.] Microsoft.Web.WebPages.OAuth.PreApplicationStartCode.Start() +0

[InvalidOperationException: The pre-application start initialization method Start on type

Microsoft.Web.WebPages.OAuth.PreApplicationStartCode threw an exception with the following error message: Could not load file or assembly 'System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..] System.Web.Compilation.BuildManager.InvokePreStartInitMethodsCore(ICollection1
methods, Func1 setHostingEnvironmentCultures) +550 System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +132 System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath) +90 System.Web.Compilation.BuildManager.ExecutePreAppStart() +135 System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +516

[HttpException (0x80004005): The pre-application start initialization method Start on type

Microsoft.Web.WebPages.OAuth.PreApplicationStartCode threw an exception with the following error message: Could not load file or assembly 'System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9874840 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +254

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18055

(对于那些读到这里的人:我没有足够的声誉来创建标签 pulling-out-my-hair。如果有合适的现有标签，请添加。KTHX。 )

预计到达时间:当我尝试手动将 Microsoft.AspNet.Mvc 更新到版本 3 时，以下是我在包管理器控制台上遇到的错误:

Install failed. Rolling back... Install-Package : Updating 'Microsoft.AspNet.Mvc 5.0.0' to 'Microsoft.AspNet.Mvc 3.0.20105.1' failed. Unable to find a version of 'Microsoft.AspNet.Mvc.FixedDisplayModes' that is compatible wi th 'Microsoft.AspNet.Mvc 3.0.20105.1'. At line:1 char:16 + Install-Package <<<< Microsoft.AspNet.Mvc -Version 3.0.20105.1 + CategoryInfo : NotSpecified: (:) [Install-Package], InvalidOperationException + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand

ETA2:我从同事那里获得了软件包目录。他们有 MS.AspNet.Mvc v5，并且运行得很好。但他们也有 MS.AspNet.Mvc.FixedDisplayModes v5。所以我要把这两个都添加进去。是的，我已经备份了我的整个解决方案。 :)

ETA3:所以我重新升级到 AspNet MVC v5，并跳过了已弃用的 Mvc.FixedDisplayNodes。然后我遇到了 AspNet.WebPages 版本冲突的问题，因此我使用了此修复程序:Conflicting versions of ASP.NET Web Pages detected: specified version is "1.0.0.0", but the version in bin is "2.0.0.0" in ASP.MET MVC 3

现在我的项目运行了!

感谢大家的帮助!

Answer 1

您可以在 Nuget Package Microsoft ASP.NET Web Pages Version 3.2.0 中找到它

如果您引用了 3.0.0.0 之前的版本，请删除该引用，添加对程序包文件夹中正确的 .dll 的引用，并确保在属性中将“复制本地”设置为“True” .dll。

然后在你的 web.config 中(如@MichaelEvanchik所述)

<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
  <dependentAssembly>
    <assemblyIdentity name="System.Web.WebPages.Razor" PublicKeyToken="31bf3856ad364e35"/>
    <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
  </dependentAssembly>
</assemblyBinding>