我遇到了问题而且我很难过，所以我希望有人可以提供帮助。
看起来结构图在构建控制器时遇到了问题。我知道一切都是正确构建的，因为a）这已经生产多年了; b）当我得到错误时，我跟随的链接来自同一个控制器。
我无法在我的开发机器上重现这一点。谁能给我一些线索？
2017-09-19 08:00:45,231 [563] ERROR WebPortal.Global [(null)] - Object
reference not set to an instance of an object. at
WebPortal.Controllers.EnrollmentController..ctor(ISystemUtility
systemUtility, IObjectAdapter`2 userToCurrentUserViewModelAdapter, ILogger
logger)
at lambda_method(Closure , IBuildSession , IContext )
2017-09-19 08:00:45,184 [563] ERROR WebPortal.Global [(null)] - Error while
building type WebPortal.Controllers.EnrollmentController. See the inner
exception for details
1.) new EnrollmentController(*Default of ISystemUtility*, *Default of
IObjectAdapter<User, CurrentUserViewModel>*, *Default of ILogger*)
2.) WebPortal.Controllers.EnrollmentController
3.) Instance of WebPortal.Controllers.EnrollmentController
4.) Container.GetInstance(WebPortal.Controllers.EnrollmentController)
at lambda_method(Closure , IBuildSession , IContext )
at StructureMap.Building.BuildPlan.Build(IBuildSession session, IContext
context)
at StructureMap.SessionCache.GetObject(Type pluginType, Instance instance,
ILifecycle lifecycle)
at StructureMap.SessionCache.GetDefault(Type pluginType, IPipelineGraph
pipelineGraph)
at StructureMap.Container.GetInstance(Type pluginType)
at
WebPortal.InjectableControllerFactory.GetControllerInstance(RequestContext
requestContext, Type controllerType)
at System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext
requestContext, String controllerName)
at System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext,
IController& controller, IControllerFactory& factory)
at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase
httpContext, AsyncCallback callback, Object state)
at
System.Web.HttpApplication.CallHandlerExecutionStep
.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously)