Hi

We are facing a strange error in one of the CMS 6 development environments. The EPiServer Framework attempts to load the 5.1.422 assemby, but i don't have any references to this assembly in the entire code. I don't even have this version installed.

Environment information:

- Windows 7 64 bit

- CMS 6.0.530.0

- .NET runtime v2.0.50727

We have another similar machine which works fine (the only difference as we can see is that this machine runs Windows 7 32-bit). I have verified that all paths in the episerver.config-file are pointing to c:\Program Files x86\. Are there other things I need to do to be able to mix between 32- and 64-bits environments?

Detailed error message:

Unable to load one or more of the requested types. The following information may be a subset of the Type/LoaderException information present - inspect with debugger for complete view.
Check assemblies [] and/or types []. Information from LoaderExceptions property [Could not load file or assembly 'EPiServer, Version=5.1.422.4, Culture=neutral, PublicKeyToken=8fe83dea738b45b7' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)].

Unable to load one or more of the requested types. The following information may be a subset of the Type/LoaderException information present - inspect with debugger for complete view.<br> Check assemblies [] and/or types []. Information from LoaderExceptions property [Could not load file or assembly 'EPiServer, Version=5.1.422.4, Culture=neutral, PublicKeyToken=8fe83dea738b45b7' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)].

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.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. The following information may be a subset of the Type/LoaderException information present - inspect with debugger for complete view.
Check assemblies [] and/or types []. Information from LoaderExceptions property [Could not load file or assembly 'EPiServer, Version=5.1.422.4, Culture=neutral, PublicKeyToken=8fe83dea738b45b7' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)].

Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace:

[ReflectionTypeLoadException: Unable to load one or more of the requested types. The following information may be a subset of the Type/LoaderException information present - inspect with debugger for complete view.
 Check assemblies [] and/or types []. Information from LoaderExceptions property [Could not load file or assembly 'EPiServer, Version=5.1.422.4, Culture=neutral, PublicKeyToken=8fe83dea738b45b7' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)].]
   EPiServer.Framework.Initialization.InitializationModule.StaticInitialization(HostType hostType) +372
   EPiServer.Framework.Initialization.InitializationModule.FrameworkInitialization(HostType hostType) +53
   EPiServer.Global..ctor() +76
   Computas.Global..ctor() +41
   ASP.global_asax..ctor() +9

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +146
   System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +298
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +79
   System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +10363067
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +258
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +382

[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11301302
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4338644


Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927

Any help is appreciated!

Regards

Håvard