Episerver 11.5.3 Yellowscreen

[MarioToronti]

I updated episerver to 11.5.3 and I get a yellow screen when trying to load Commerce Manager. With the error below:

While loading .NET types from "BVNetwork.EPi404" the following error(s) was reported:

- System.TypeLoadException: Could not load type 'EPiServer.SimplePage' from assembly 'EPiServer, Version=11.5.3.0, Culture=neutral, PublicKeyToken=8fe83dea738b45b7'.
- System.TypeLoadException: Could not load type 'EPiServer.Framework.IInitializableHttpModule' from assembly 'EPiServer.Framework, Version=11.5.3.0, Culture=neutral, PublicKeyToken=8fe83dea738b45b7'.

Stack trace:

[InitializationException: While loading .NET types from "BVNetwork.EPi404" the following error(s) was reported:

     - System.TypeLoadException: Could not load type 'EPiServer.SimplePage' from assembly 'EPiServer, Version=11.5.3.0, Culture=neutral, PublicKeyToken=8fe83dea738b45b7'.
     - System.TypeLoadException: Could not load type 'EPiServer.Framework.IInitializableHttpModule' from assembly 'EPiServer.Framework, Version=11.5.3.0, Culture=neutral, PublicKeyToken=8fe83dea738b45b7'.

]
   EPiServer.Framework.Initialization.Internal.InitializationExceptionHelper.ThrowFriendlyTypeScannerException(IEnumerable`1 reflectionExceptions, IEnumerable`1 addonsWithErrors) +114
   EPiServer.Framework.Initialization.InitializationModule.EngineExecute(HostType hostType, Action`1 engineAction) +1347
   EPiServer.Framework.Initialization.InitializationModule.FrameworkInitialization(HostType hostType) +225
   EPiServer.Global..ctor() +103
   ASP.global_asax..ctor() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\6ad79c2f\836b8a2c\App_global.asax.hyulgj-w.0.cs:0

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) +139
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +105
   System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark) +1431
   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +184
   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture) +27
   System.Web.HttpRuntime.CreateNonPublicInstance(Type type, Object[] args) +79
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +262
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +341

[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +523
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +107
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +688

[marisks]

Which version of the 404 handler do you use?

[MarioToronti]

I was having this error with 11.0.0 and so I updated to the latest one 11.1.12 but still getting the error.

[marisks]

Do you have assembly bindings set correctly for these Episerver assemblies?

[MarioToronti]

This is from my .csproj file (I don't know why it's version:1.0.0.0):

<Reference Include="BVNetwork.EPi404, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
      <HintPath>..\packages\BVN.404Handler.11.1.12\lib\net461\BVNetwork.EPi404.dll</HintPath>
    </Reference>

And this from web.config: <section name="bvn404Handler" type="BVNetwork.NotFound.Configuration.Bvn404HandlerConfiguration, BVNetwork.EPi404" />

I also added everything mentioned in configuration

I found out that both these assemblies were moved from EPiServer.Framework to EPiServer.Framework.AspNet. I think this is why they can't be found.

[marisks]

Have you tried to clean ASP.NET cache? The path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files

[MarioToronti]

Didn't work. Neither empting bin folder and restarting VS

[MarioToronti]

Thanks for the help! :) I managed to solve this problem. After deleting BVNetwork.EPi404.dll from Commerce Manager's bin folder, I got a new error Value cannot be null.Parameter name: virtualPath]in EPiServer.Shell.ShellInitialization.WaitForInitializeModules()

which got solved by restoring removed episerver.shell web.config entries after commerce update, as mentioned here