ServiceStack Error Cargando WebHost Endpoint

Question

Intento seguir el ejemplo Hello de ServiceStack. Estoy usando Visual Studio 2010, Win 7 de 64 bits, pero IIS está configurado para ejecutar aplicaciones de 32 bits. El proyecto Hello que creé usa ASP.Net MVC3. Me sale este error al intentar acceder a los metadatos:

Could not load type 'ServiceStack.WebHost.Endpoints.AppHostBase' from assembly 'ServiceStack, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' 

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.TypeLoadException: Could not load type 'ServiceStack.WebHost.Endpoints.AppHostBase' from assembly 'ServiceStack, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. 

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: 


[TypeLoadException: Could not load type 'ServiceStack.WebHost.Endpoints.AppHostBase' from assembly 'ServiceStack, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.] 
    System.Reflection.CustomAttribute._CreateCaObject(RuntimeModule pModule, IRuntimeMethodInfo pCtor, Byte** ppBlob, Byte* pEndBlob, Int32* pcNamedArgs) +0 
    System.Reflection.CustomAttribute.CreateCaObject(RuntimeModule module, IRuntimeMethodInfo ctor, IntPtr& blob, IntPtr blobEnd, Int32& namedArgs) +46 
    System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes, Boolean isDecoratedTargetSecurityTransparent) +529 
    System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType) +103 
    System.Reflection.RuntimeAssembly.GetCustomAttributes(Type attributeType, Boolean inherit) +64 
    WebActivator.AssemblyExtensions.GetActivationAttributes(Assembly assembly) +145 
    WebActivator.ActivationManager.RunActivationMethods() +216 
    WebActivator.ActivationManager.RunPreStartMethods() +43 
    WebActivator.ActivationManager.Run() +69 

[InvalidOperationException: The pre-application start initialization method Run on type WebActivator.ActivationManager threw an exception with the following error message: Could not load type 'ServiceStack.WebHost.Endpoints.AppHostBase' from assembly 'ServiceStack, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'..] 
    System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +423 
    System.Web.Compilation.BuildManager.CallPreStartInitMethods() +306 
    System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +677 

[HttpException (0x80004005): The pre-application start initialization method Run on type WebActivator.ActivationManager threw an exception with the following error message: Could not load type 'ServiceStack.WebHost.Endpoints.AppHostBase' from assembly 'ServiceStack, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'..] 
    System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9089964 
    System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97 
    System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +258 

Answer 1

me encontré con el mismo problema - cuando creé el proyecto ASP.NET vacío lo llamé - acertadamente lo suficientemente - ServiceStack. (Problema de activación) Cuando actualicé mi nombre de proyecto ASP (y todos los espacios de nombres correspondientes) a algo similar a ServiceStackExperiment - todo era unicornios y arcoiris.

Answer 2

Este es un post muy antiguo, pero esto podría ayudar a alguien si recibían un error similar al desarrollar contra la versión ServiceStack 4.

Hubo algunos ajustes necesarios para el archivo web.config si decide copiar y pegar de algunas guías servicestack que fueron escritos para la versión ServiceStack 3.

secciones controlador HTTP que tiene el espacio de nombres ServiceStack.Webhost tendrá que ser cambiado a algo como lo siguiente

<httpHandlers> 
    <add path="*" type="ServiceStack.HttpHandlerFactory, ServiceStack" verb="*"/> 
    </httpHandlers> 

    <handlers> 
    <add path="*" name="ServiceStack.Factory" type="ServiceStack.HttpHandlerFactory, ServiceStack" verb="*" preCondition="integratedMode" resourceType="Unspecified" allowPathInfo="true" />   
    </handlers> 

Espero que ayude a alguien!