我们有一个应用程序使用WebForms .aspx文件的一切。 Latley我们一直在使用预编译的RazorViews作为通过简单地在我们的项目中删除一个新的dll来获取nicley打包功能的一种方式。但是现在我们发现我们的预编译视图与我们的VirtualPathProviders有冲突。
从外部dll加载VirtualPathProvider时，应用程序会尝试为所有请求加载PrecompiledApp.config(而且我们没有得到它)。提供者加载了反射。我们在注册的同一个项目中有一些VirtualPathProvider，它们工作正常，但是当我们通过HostingEnvironment.RegisterVirtualPathProvider从外部dll注册提供程序时，我们得到这个问题。
如果我们添加了PrecompiledApp.config文件，它会尝试获取_appstart.cshtml等等。我们必须先下载所有的这些文件，然后再过去：
> PrecompiledApp.config
> _appstart.cshtml
> _PageStart.cshtml
> _ViewStart.cshtml
> Views / _ViewStart.cshtml
>视图/共享/ _ViewStart.cshtml
> default.cshtml
我们最终在default.cshtml，其余的应用程序工作。由于我们希望使用apsx-files作为默认值，这不是一个可以接受的解决方案。我们也担心会出现更多的问题，因为我们不知道为什么会发生这种情况。
我们已经尝试加载我们的提供商，但我们仍然得到相同的错误：
http://sunali.com/2008/01/09/virtualpathprovider-in-precompiled-web-sites/
例外：
Could not find file 'C:\MyApp\PrecompiledApp.config'. 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 find file 'C:\MyApp\PrecompiledApp.config'. 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. Stack Trace: [FileNotFoundException: Could not find file 'C:\MyApp\PrecompiledApp.config'.] System.IO.__Error.WinIOError(Int32 errorCode,String maybeFullPath) +12899479 System.IO.FileStream.Init(String path,FileMode mode,FileAccess access,Int32 rights,Boolean useRights,FileShare share,Int32 bufferSize,FileOptions options,SECURITY_ATTRIBUTES secAttrs,String msgPath,Boolean bFromProxy,Boolean useLongPath) +2481 System.IO.FileStream..ctor(String path,Boolean bFromProxy) +229 System.IO.FileStream..ctor(String path,FileShare share) +102 System.Web.Hosting.MapPathBasedVirtualFile.Open() +105 System.Web.WebPages.BuildManagerWrapper.IsNonUpdatablePrecompiledApp() +157 System.Web.WebPages.BuildManagerWrapper..ctor(VirtualPathProvider vpp,IVirtualPathUtility virtualPathUtility) +48 System.Web.WebPages.VirtualPathFactoryManager.<.cctor>b__6() +90 System.Lazy`1.CreateValue() +12776623 System.Lazy`1.LazyInitValue() +355 System.Web.WebPages.ApplicationStartPage.ExecuteStartPage(HttpApplication application) +131 System.Web.WebPages.WebPageHttpModule.StartApplication(HttpApplication application,Action`1 executeStartPage,EventHandler applicationStart) +98 System.Web.WebPages.WebPageHttpModule.InitApplication(HttpApplication application) +75 System.Web.WebPages.WebPageHttpModule.Init(HttpApplication application) +268 System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext,HttpContext context,MethodInfo[] handlers) +575 System.Web.HttpApplication.InitSpecial(HttpApplicationState state,MethodInfo[] handlers,IntPtr appContext,HttpContext context) +352 System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext,HttpContext context) +407 System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +375 [HttpException (0x80004005): Could not find file 'C:\MyApp\PrecompiledApp.config'.] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11700992 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +141 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr,HttpContext context) +4869221 Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
