c# - asax - no se pudo cargar el tipo system web mvc viewusercontrol

¿Por qué System.Core no se carga al agregar compatibilidad con UI codificada para la aplicación Silverlight 5?

Question

Tengo el siguiente problema:

Intentando agregar soporte para crear una prueba de interfaz de usuario codificada para la aplicación Silverlight 5 ([MSDN] [1]). El primer paso es hacer referencia al ensamblado Microsoft.VisualStudio.TestTools.UITest.Extension.SilverlightUIAutomationHelper.dll en el proyecto Silverlight 5. Desafortunadamente, después de que se agregó la referencia, los proyectos se detienen para compilarse con una cantidad de errores similares:

>

 Error  25  Cannot resolve reference assemblies. Please check the reference assemblies. Could not load file or assembly ''System.Core, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e'' or one of its dependencies. The located assembly''s manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) ..../ErrorReportDialog.xaml


Looks like System.Core 5.0.5.0 fails to load, okay, debugging assemblies loading with Fuslogw produces two interesting logs:

First log:

> Assembly Binder Log Entry  (04.03.2013 @ 14:07:49)
The operation was successful.
Bind result: hr = 0x0. The operation completed successfully.
Assembly manager loaded from:  C:/Windows/Microsoft.NET/Framework/v4.0.30319/clr.dll
Running under executable  C:/Windows/Microsoft.NET/Framework/v4.0.30319/MSBuild.exe
A detailed error log follows. 
=== Pre-bind state information ===
LOG: DisplayName = System.Core, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e
 (Fully-specified)
LOG: Appbase = file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = MSBuild.exe
Calling assembly : System.Windows, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e.
LOG: This bind starts in LoadFrom load context.
WRN: Native image will not be probed in LoadFrom context. Native image will only be probed in default load context, like with Assembly.Load().
LOG: Using application configuration file: C:/Windows/Microsoft.NET/Framework/v4.0.30319/MSBuild.exe.Config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:/Windows/Microsoft.NET/Framework/v4.0.30319/config/machine.config.
LOG: Post-policy reference: System.Core, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e
LOG: Binding succeeds. Returns assembly from C:/Program Files (x86)/Reference Assemblies/Microsoft/Framework/Silverlight/v5.0/System.Core.dll.
LOG: Assembly is loaded in LoadFrom load context.

Looks like System.Core, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e loads succesfully.

But second log entry produces the following error:

> Assembly Binder Log Entry  (04.03.2013 @ 14:07:49)
The operation failed.
Bind result: hr = 0x80131040. No description available.
Assembly manager loaded from:  C:/Windows/Microsoft.NET/Framework/v4.0.30319/clr.dll
Running under executable  C:/Windows/Microsoft.NET/Framework/v4.0.30319/MSBuild.exe
A detailed error log follows. 
Pre-bind state information
LOG: DisplayName = System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e
 (Fully-specified)
LOG: Appbase = file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = MSBuild.exe
Calling assembly : Microsoft.VisualStudio.TestTools.UITest.Extension.SilverlightUIAutomationHelper, Version=10.0.30319.381, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a.
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:/Windows/Microsoft.NET/Framework/v4.0.30319/MSBuild.exe.Config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:/Windows/Microsoft.NET/Framework/v4.0.30319/config/machine.config.
LOG: Redirect found in application configuration file: 2.0.5.0 redirected to 5.0.5.0.
LOG: Post-policy reference: System.Core, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e
LOG: The same bind was seen before, and was failed with hr = 0x80131040.
ERR: Unrecoverable error occurred during pre-download check (hr = 0x80131040).

Parece que Microsoft.VisualStudio.TestTools.UITest.Extension.SilverlightUIAutomationHelper.dll intenta cargar System.Core, Version = 2.0.5.0, Culture = neutral, PublicKeyToken = 7cec85d7bea7798e, pero está siendo redirigido a System.Core, Version = 5.0.5.0 , Culture = neutral, PublicKeyToken = 7cec85d7bea7798e (ya cargado desde el primer registro) y aún no se carga.

Can anyone provide some insight on how to further debug this problem? I''m compiling Silverlight projects for AnyCpu platform.


  [1]: http://msdn.microsoft.com/en-us/library/gg413374.aspx

Answer 1

Para confirmar la versión de System.Core requerida por SilverlightUIAuthomationHelper, haga lo siguiente:

1. encuentre el dll SilverlightUIAuthomationHelper al que se hace referencia en el disco.
2. cárguelo en cualquier desensamblador / reflector, por ejemplo dotPeek o Reflector.
3. compruebe las versiones de ensamblados referenciados: System.Core debe ser 2.0.5.0 en su versión de SilverlightUIAuthomationHelper

Soluciones posibles:

1. actualice SilverlightUIAuthomationHelper a la nueva versión (enlace en el comentario de Hans Passant) que hace referencia a System.Core dll (versión 5.0.5.0) nueva
2. Debido a que fuslogvw dice que el redireccionamiento de 2.0.5.0 a 5.0.5.0 se encuentra en el archivo de configuración de APLICACIÓN, intente encontrar y eliminar esta redirección ( detalles aquí ). Pero es muy posible que algo más se rompa.