c# - Catel/Ninject: Ninject.ActivationException when resolving IUIVisualizerService -

when trying resolve iuivisualizerservice ninject.activationexception came in ninject.dll.

can me pls?

this code section calls problem:

ninjectdependencyresolver resolver = new ninjectdependencyresolver();             var item = resolver.getservice<iuivisualizerservice>(); 

code resolver:

using system;     using system.collections.generic;     using catel.services;     using ninject;     using nlog;      namespace ms_modell.infrastructure     {         internal class ninjectdependencyresolver         {             private ikernel kernel;             private logger log = logmanager.getcurrentclasslogger();              public ninjectdependencyresolver()             {                 try                 {                     kernel = new standardkernel();                     kernel.bind<iuivisualizerservice>().to<uivisualizerservice>();                 }                 catch (exception ex)                 {                     log.fatal("ninjectdependencyresolver(): " + ex);                     throw;                 }             }              public t getservice<t>()             {                 try                 {                     return kernel.tryget<t>();                 }                 catch (exception ex)                 {                     log.fatal("getservice<t>(): " + ex.message);                     throw;                 }             }                }     } 

edit: got null object after getservice called. exception wasnt raised. message on console output of visual studio can seen:

an expcetion (first chance) of type "ninject.activationexception" thrown in ninject.dll.

edit 2:

thx guys fast answers. here concrete solution someone, runs same problem:

in ninjectresolver need add code:

    kernel.bind<iviewlocator>().to<viewlocator>();     kernel.bind<iuivisualizerservice>().to<uivisualizerservice>().withconstructorargument("viewlocator", getservice<iviewlocator>()); 

resolving iuivisualizerservice:

targetselectorviewmodel selector = new targetselectorviewmodel();                 var item = resolver.getservice<iuivisualizerservice>();                 item.register(typeof(targetselectorviewmodel), typeof(targetselector));                 item.showdialog(selector); 

the uivisualizerservice requires dependency injection of iviewlocator. make sure ninject can resolve well.

https://github.com/catel/catel/blob/develop/src/catel.mvvm/catel.mvvm.net40/services/uivisualizerservice.cs#l54