'System.Web.WebPages.Html.HtmlHelper' enthält keine Definition für 'ActionLink

Erstens - Ich habe SO durchsucht und viele Fragen gefunden, die dasselbe fragten, obwohl das einfache Hinzufügen von <add namespace="System.Web.Mvc.Html" /> in meiner web.config das Problem nicht behoben hat ...

Ok, also ich habe ein neues Projekt gestartet, basierend auf der Vorlage Angular SPA - Link ist hier:

http://visualstudiogallery.msdn.Microsoft.com/5af151b2-9ed2-4809-bfe8-27566bfe7d83

Ich habe die MVC auf Version 5 und das webApi auf Version 2 aktualisiert, um mit anderen Projekten in der Lösung übereinzustimmen.

Jetzt versuche ich auf der _layout-Seite der SPA-Site, den @Html.ActionLink -Helfer zu verwenden, erhalte jedoch weiterhin den Fehler 'System.Web.WebPages.Html.HtmlHelper' does not contain a definition for 'ActionLink

Ich bin sicher, dass dies alles auf eine web.config-Konfiguration zurückzuführen ist - eine Art Konflikt zwischen den installierten Paketen und den in der Konfiguration aus der Vorlage konfigurierten Paketen.

Insbesondere dieser Teil:

<system.web.webPages.razor>
    <Host factoryType="System.Web.WebPages.Razor.WebRazorHostFactory, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <pages pageBaseType="System.Web.WebPages.WebPage">
      <namespaces>            
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Optimization" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages" />
      </namespaces>
    </pages>
  </system.web.webPages.razor>

Wenn ich dies ändere, um Version 5 zu verwenden, erhalte ich die Fehlermeldung, dass die Assembly (v5) nicht gefunden werden konnte usw.

Mir gehen die Ideen zur Lösung dieses Konflikts aus.

Hier sind die Konfigurationsabschnitte aus meiner SPA-Datei web.config

<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>

Wenn ich die Version auf 5 ändere, wird der folgende Fehler angezeigt:

Assembly Load Trace: The following information can be helpful to determine why the Assembly 'System.Web.WebPages.Razor, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.


=== Pre-bind state information ===
LOG: DisplayName = System.Web.WebPages.Razor, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
 (Fully-specified)
LOG: Appbase = file:///D:/Development/IS/IS/IS.TransactionDesk.SPA/
LOG: Initial PrivatePath = D:\Development\IS\IS\IS.TransactionDesk.SPA\bin
Calling Assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: D:\Development\IS\IS\IS.TransactionDesk.SPA\web.config
LOG: Using Host configuration file: C:\Users\Darren\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=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
LOG: Attempting download of new URL file:///C:/Users/Darren/AppData/Local/Temp/Temporary ASP.NET Files/root/3407d437/8e7ba9a/System.Web.WebPages.Razor.DLL.
LOG: Attempting download of new URL file:///C:/Users/Darren/AppData/Local/Temp/Temporary ASP.NET Files/root/3407d437/8e7ba9a/System.Web.WebPages.Razor/System.Web.WebPages.Razor.DLL.
LOG: Attempting download of new URL file:///D:/Development/IS/IS/IS.TransactionDesk.SPA/bin/System.Web.WebPages.Razor.DLL.
WRN: Comparing the Assembly name resulted in the mismatch: Major Version
ERR: Failed to complete setup of Assembly (hr = 0x80131040). Probing terminated.

Stack Trace: 


[FileLoadException: Could not load file or Assembly 'System.Web.WebPages.Razor, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located Assembly's manifest definition does not match the Assembly reference. (Exception from HRESULT: 0x80131040)]
   System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type) +0
   System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName) +70
   System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark) +39
   System.Type.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) +37
   System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) +65
   System.Web.WebPages.Razor.WebRazorHostFactory.DefaultTypeFactory(String typeName) +39
   System.Web.WebPages.Razor.WebRazorHostFactory.CreateFactory(String typeName) +67
   System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory) +72
   System.Web.WebPages.Razor.WebRazorHostFactory.CreateHostFromConfigCore(RazorWebSectionGroup config, String virtualPath, String physicalPath) +313
   System.Web.WebPages.Razor.WebRazorHostFactory.CreateHostFromConfig(String virtualPath, String physicalPath) +228
   System.Web.WebPages.Razor.WebRazorHostFactory.CreateHostFromConfig(String virtualPath) +38
   System.Web.WebPages.Razor.RazorBuildProvider.GetHostFromConfig() +51
   System.Web.WebPages.Razor.RazorBuildProvider.CreateHost() +57
   System.Web.WebPages.Razor.RazorBuildProvider.get_Host() +56
   System.Web.WebPages.Razor.RazorBuildProvider.EnsureGeneratedCode() +77
   System.Web.WebPages.Razor.RazorBuildProvider.get_CodeCompilerType() +54
   System.Web.Compilation.BuildProvider.GetCompilerTypeFromBuildProvider(BuildProvider buildProvider) +59
   System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders() +209
   System.Web.Compilation.BuildProvidersCompiler.PerformBuild() +30
   System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) +9881909
   System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) +299
   System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) +103
   System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound) +165
   System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp) +43
   System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(String virtualPath, Type requiredBaseType) +28
   System.Web.WebPages.BuildManagerWrapper.CreateInstanceOfType(String virtualPath) +343
   System.Web.WebPages.VirtualPathFactoryExtensions.CreateInstance(IVirtualPathFactory factory, String virtualPath) +236
   System.Web.WebPages.VirtualPathFactoryManager.CreateInstanceOfType(String virtualPath) +261
   System.Web.WebPages.VirtualPathFactoryExtensions.CreateInstance(IVirtualPathFactory factory, String virtualPath) +132
   System.Web.WebPages.WebPageHttpHandler.CreateFromVirtualPath(String virtualPath, IVirtualPathFactory virtualPathFactory) +58
   System.Web.WebPages.WebPageHttpHandler.CreateFromVirtualPath(String virtualPath) +59
   IS.TransactionDesk.SPA.Routing.DefaultRouteHandler.GetHttpHandler(RequestContext requestContext) in d:\Development\IS\IS\IS.TransactionDesk.SPA\Routing\DefaultRouteHandler.cs:42
   System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context) +9598252
   System.Web.Routing.UrlRoutingModule.OnApplicationPostResolveRequestCache(Object sender, EventArgs e) +82
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +136
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69