无法加载文件或程序集System.Web.WebPages.Razor, Version=3.0.0.0或其依赖项之一

29

我在我的应用程序中使用MVC 5,WCF和Unity框架。

当我运行WCF服务时出现以下错误:

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.


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

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.]
   System.Web.Mvc.PreApplicationStartCode.Start() +0

[InvalidOperationException: The pre-application start initialization method Start on type System.Web.Mvc.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(ICollection`1 methods, Func`1 setHostingEnvironmentCultures) +556
   System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +132
   System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) +102
   System.Web.Compilation.BuildManager.ExecutePreAppStart() +153
   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 System.Web.Mvc.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) +9882460
   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:4.0.30319.33440

我已经在WCF项目中添加了System.Web.WebPages.Razor,版本为3.0.0.0,但是仍然出现相同的错误。

有人知道如何解决这个错误吗?

3个回答

101

请确保您的项目目标是 .net 4.5,所有引用都是有效的,并且 web AspNet.WebPages.* 在 bin (Release/Debug) 文件夹中。

valid refs

您还可以尝试使用包管理器控制台中的此命令重新安装 Microsoft.AspNet.WebPages nuget 包:

> Update-Package –reinstall Microsoft.AspNet.WebPages 

10
为什么在 WCF 项目中需要这个?Razor 是一个 Web DLL。 - zimdanen
3
不要混淆Microsoft.Web.MvcSystem.Web.Mvc。我不知道为什么MvcContrib认为那是个好名字。 - Dennis
3
@user2934829 - 你真的应该接受这个答案。 - Alex
4
我的项目只是一个Web Api,也遇到了同样的问题。我通过清空bin文件夹解决了这个问题 :) - user919532
1
我解决了我的问题,删除了 System.Web.Mvc ,现在可以运行了! - Pedro Benevides
显示剩余7条评论

2
我在我的Win10 x64系统上遇到了与此相同的错误(还有其他几个缺少引用错误)。我认为我的问题是由于从添加/删除中卸载某些内容而拆卸了其他dlls。在搜索互联网寻找解决方案后,最终对我有效的答案在这里:https://dev59.com/k2gu5IYBdhLWcg3winrU#27785999

下载并安装Web Pages Version 2


0

我曾经遇到过同样的问题,WCF显示了与MVC程序集无关的错误(我的解决方案中有多个使用System.Web.WebPages.Razor,Version=3.0.0.0的MVC项目)。我在WCF项目中安装了Microsoft.AspNet.WebPages包,运行WCF项目,它就可以工作了。之后,我卸载了所有与Microsoft.AspNet.WebPages相关的包。它正常工作了。


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