title: Cannot create an instance of an interface
body: <p>after install profile 1.1, add at least one field to the User Content Types then go to the Users module and click on Add a new user, click save and you should get this error. any help would be appreciate.</p>
  
  <h2>Server Error in '/OrchardLocal' Application.</h2>
  
  <p>Cannot create an instance of an interface. 
  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. </p>
  
  <pre><code>Exception Details: System.MissingMethodException: Cannot create an instance of an interface.
  
  Source Error: 
  
  
  Line 146: public void EndProcessRequest(IAsyncResult result) {
  Line 147: try {
  Line 148: _httpAsyncHandler.EndProcessRequest(result);
  Line 149: }
  Line 150: finally {
  
  
  Source File: C:\Users\rspaulino\Desktop\src\Orchard\Mvc\Routes\ShellRoute.cs Line: 148 
  
  Stack Trace: 
  
  
      [MissingMethodException: Cannot create an instance of an interface.]
      System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean&amp; canBeCached, RuntimeMethodHandleInternal&amp; ctor, Boolean&amp; bNeedSecurityCheck) +0
      System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +98
      System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +241
      System.Activator.CreateInstance(Type type, Boolean nonPublic) +69
      System.Web.Mvc.DefaultModelBinder.CreateModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Type modelType) +199
      System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +572
      System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +449
      System.Web.Mvc.DefaultModelBinder.GetPropertyValue(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor, IModelBinder propertyBinder) +17
      System.Web.Mvc.DefaultModelBinder.BindProperty(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor) +399
      System.Web.Mvc.DefaultModelBinder.BindProperties(ControllerContext controllerContext, ModelBindingContext bindingContext) +93
      System.Web.Mvc.DefaultModelBinder.BindComplexElementalModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Object model) +53
      System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +1367
      System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +449
      System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor) +317
      System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext, ActionDescriptor actionDescriptor) +117
      System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +343
      System.Web.Mvc.Controller.ExecuteCore() +116
      System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97
      System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
      System.Web.Mvc.&lt;&gt;c__DisplayClassb.&lt;BeginProcessRequest&gt;b__5() +37
      System.Web.Mvc.Async.&lt;&gt;c__DisplayClass1.&lt;MakeVoidDelegate&gt;b__0() +21
      System.Web.Mvc.Async.&lt;&gt;c__DisplayClass8`1.&lt;BeginSynchronous&gt;b__7(IAsyncResult _) +12
      System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
      System.Web.Mvc.&lt;&gt;c__DisplayClasse.&lt;EndProcessRequest&gt;b__d() +50
      System.Web.Mvc.SecurityUtil.&lt;GetCallInAppTrustThunk&gt;b__0(Action f) +7
      System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
      System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
      System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
      Orchard.Mvc.Routes.HttpAsyncHandler.EndProcessRequest(IAsyncResult result) in C:\Users\rspaulino\Desktop\src\Orchard\Mvc\Routes\ShellRoute.cs:148
      System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8963149
      System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously) +
  </code></pre>
  
  <p>184</p>
  
  <hr>
  
  <p>Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.237 </p>