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POStructuremap does not work on MVC4
 

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    <p>I've used <code>StructureMap</code> in MVC2/3 many times without any concern, but I guess handling IoC is different in MVC4. When i used <code>StructureMap</code> for handling IoC in MVC4 I get the following exception.:</p> <h2>No parameterless constructor defined for this object</h2> <p>Why? I have not found any correct result in google except this: <a href="http://connect.microsoft.com/VisualStudio/feedback/details/725313/ioc-not-working-in-mvc4" rel="noreferrer">IoC Not Working In MVC4</a> These is my IoC classes:</p> <pre><code>public static class IoC { public static IContainer Initialize() { ObjectFactory.Initialize(x =&gt; { x.Scan(scan =&gt; { //scan.Assembly("DLL.Core"); scan.Assembly("DLL.CMS"); scan.TheCallingAssembly(); scan.WithDefaultConventions(); }); x.For&lt;IDbContext&gt;().Use&lt;ModelEntities&gt;(); x.For(typeof(IRepository&lt;&gt;)).Use(typeof(Repository&lt;&gt;)); x.For&lt;IHttpControllerActivator&gt;(); x.For&lt;IController&gt;(); }); return ObjectFactory.Container; } </code></pre> <p>And SmDependencyResolver is:</p> <pre><code> public class SmDependencyResolver : IDependencyResolver { private readonly IContainer _container; public SmDependencyResolver(IContainer container) { _container = container; } public object GetService(Type serviceType) { if (serviceType == null) return null; try { return serviceType.IsAbstract || serviceType.IsInterface ? _container.TryGetInstance(serviceType) : _container.GetInstance(serviceType); } catch { return null; } } public IEnumerable&lt;object&gt; GetServices(Type serviceType) { return _container.GetAllInstances(serviceType).Cast&lt;object&gt;(); } } </code></pre> <p>And my error is:</p> <blockquote> <p>No parameterless constructor defined for this object. 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: No parameterless constructor defined for this object. </code></pre> <p>Source Error: </p> <p>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.</p> <p>Stack Trace: </p> <p>[MissingMethodException: No parameterless constructor defined for this object.] System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean&amp; canBeCached, RuntimeMethodHandleInternal&amp; ctor, Boolean&amp; bNeedSecurityCheck) +0<br> System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +98<br> System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +241 System.Activator.CreateInstance(Type type, Boolean nonPublic) +69<br> System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +67</p> <p>[InvalidOperationException: An error occurred when trying to create a controller of type 'Parsian.Web.Areas.Dashboard.Controllers.MemberController'. Make sure that the controller has a parameterless public constructor.]<br> System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +182<br> System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +80<br> System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +74<br> System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController&amp; controller, IControllerFactory&amp; factory) +196 System.Web.Mvc.&lt;>c__DisplayClass6.b__2() +49 System.Web.Mvc.&lt;>c__DisplayClassb<code>1.&lt;ProcessInApplicationTrust&gt;b__a() +13 System.Web.Mvc.SecurityUtil.&lt;GetCallInAppTrustThunk&gt;b__0(Action f) +7 System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22<br> System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Func</code>1 func) +124 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +98<br> System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +50<br> System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +16<br> System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8862676 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously) +184</p> </blockquote> <p>Thanks for correct answers. </p>
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    1. USJason
    1. USArash Karami
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    1. COCan you post the full error message? Do you set the `SmDependencyResolver` as `DependencyResolver` in the Global.asax or in the `PreApplicationStartMethod`?. Because I've just created a MVC4 project with the [StructureMap.MVC3](http://nuget.org/packages/StructureMap.MVC3) nuget package and it works as excepted...
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      1. USnemesv
    2. COi dont want use this package, I add only structuremap package (dll) to project with nuget.
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      1. USArash Karami
    3. COJust use the DefaultControllerFactory.
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      1. USRookian
 

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