Question

我的ASP.NET MVC 3应用程序在我的本地计算机上工作正常（并且在部署时通常可以正常工作），但在这种情况下我得到以下错误。服务器是带有IIS7的Windows 2008 R2

编辑：Botion ILoggingService＆amp; IConfigSettings由Ninject（如果有帮助）

绑定在Singleton Scope中

任何人都可以找到我应该寻找的指示吗？

Object reference not set to an instance of an 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. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

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.  

Stack Trace: 


[NullReferenceException: Object reference not set to an instance of an object.]
DataPortal.Models.Repositories.KpiRepository..ctor(ILoggingService ls, IConfigSettings configSettings) +1295
DynamicInjector3f592a0195c345d8a7d555c4c4085e12(Object[] ) +128
Ninject.Activation.Context.Resolve() +279
System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +237
System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +298
System.Linq.WhereSelectArrayIterator`2.MoveNext() +109
System.Linq.Buffer`1..ctor(IEnumerable`1 source) +487
System.Linq.Enumerable.ToArray(IEnumerable`1 source) +103
Ninject.Activation.Providers.StandardProvider.Create(IContext context) +479
Ninject.Activation.Context.Resolve() +279
System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +237
System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +298
System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +67

[InvalidOperationException: An error occurred when trying to create a controller of type 'DataPortal.Controllers.KpiController'. Make sure that the controller has a parameterless public constructor.]
System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +247
System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +85
System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +280
System.Web.Mvc.<>c__DisplayClass6.<BeginProcessRequest>b__2() +66
System.Web.Mvc.<>c__DisplayClassb`1.<ProcessInApplicationTrust>b__a() +19
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Func`1 func) +161
       System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +405
 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +375

Answer 1

最终是一个依赖问题。该项目依赖于尚未部署的另一个项目。

Answer 2

您的web.config中似乎未正确配置“LoggingService或ConfigSettings”之一。检查以前的工作版配置文件。

Answer 3

在某些情况下，它可能与数据库问题有关，例如：

在没有正确异常处理的情况下返回空值的选择会导致相同的错误。因此，需要检查他的sql请求。

部署 - 未将对象引用设置为对象的实例

3 个答案: