Databases
StackOverflow2013
Postsdbo
POMVC 3 Exception: Make sure that the controller has a parameterless public constructor
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POMVC 3 Exception: Make sure that the controller has a parameterless public constructor
    primarykey
    data
    text
    <p>I have MVC 3 app with <a href="https://stackoverflow.com/questions/12326945/no-parameterless-constructor-defined-for-this-object">this</a> same problem. I use Ninject for dependency injection. I cannot trace which controller has a problem, it broke yesterday and I have spent an entire day trying to locate. There are over 60 controllers in the application. The exception cannot be caught or debugged nor the trace provide any meaningful clue as to the problematic source controller. No action for any controller can be accessed without this exception being thrown. </p> <p>Has anyone any idea how I can determine the actual controller having the problem?</p> <p>Thanks</p> <p>Inner Exception:</p> <pre><code>System.MissingMethodException: No parameterless constructor defined for this object. at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean&amp; canBeCached, RuntimeMethodHandleInternal&amp; ctor, Boolean&amp; bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) at System.Activator.CreateInstance(Type type, Boolean nonPublic) at System.Web.Mvc.DefaultControllerFactory.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) </code></pre> <p>Stack Trace:</p> <pre><code>at System.Web.Mvc.DefaultControllerFactory.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) at System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) at System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) at System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController&amp; controller, IControllerFactory&amp; factory) at System.Web.Mvc.MvcHandler.&lt;&gt;c__DisplayClass6.&lt;BeginProcessRequest&gt;b__2() at System.Web.Mvc.SecurityUtil.&lt;&gt;c__DisplayClassb`1.&lt;ProcessInApplicationTrust&gt;b__a() at System.Web.Mvc.SecurityUtil.&lt;GetCallInAppTrustThunk&gt;b__0(Action f) at System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) at System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust[TResult](Func`1 func) at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously) </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USGordon Hickley
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. CO`No action for any controller can be accessed without this exception being thrown.`. It sounds like something you're injecting in _every_ controller or an action filter that is used in all controllers is broken (ie missing a dependency). A single broken controller should not break your whole system.
      singulars
      1. POMVC 3 Exception: Make sure that the controller has a parameterless public constructor
      1. USJoachim Isaksson
    2. COHm, this may be nothing since I'm not sure what the stack trace would look like if it's actually using NInject to resolve the controller, but to me it looks like it's using the default activator instead of NInject. Are you sure NInject is correctly registered?
      singulars
      1. POMVC 3 Exception: Make sure that the controller has a parameterless public constructor
      1. USJoachim Isaksson
    3. COYes, definitely not using Ninject. See the line in the inner exception that says `System.Activator.CreateInstance`
      singulars
      1. POMVC 3 Exception: Make sure that the controller has a parameterless public constructor
      1. USSimon Halsey
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload