Failed to inject 'ITransientDependency' successfully

[hehetiger]

I referred to the documentation and found that inheriting 'ITransientDependency' will automatically inject it. However, in my project, after inheriting it, when using 'EasyExcelManager', it is null. Did this result in edge injection not being successful? What is the problem? How to solve it?

[maliming]

hi

I think you are using the https://github.com/aspnetboilerplate/aspnetboilerplate

• Your Abp package version.
• Your base framework: .Net Framework or .Net Core.
• Exception message and stack trace if available.
• Steps needed to reproduce the problem.

Can you inject it in the constructor?

[hehetiger]

My Abp package version is 9.4.0
.Net 8.0

System.NullReferenceException
HResult=0x80004003
Message=Object reference not set to an instance of an object.
Source=QuanStar.MOM.Web.Core
StackTrace:
在 QuanStar.MOM.Web.Controllers.UsersControllerBase.d__13.MoveNext() 在 D:\Code\QuanStar.MOM\QuanStar.MOM.Web\src\QuanStar.MOM.Web.Core\Controllers\UsersControllerBase.cs 中: 第 101 行

I have tried injecting in the constructor, but the front-end console is reporting an error directly "Failed to load resource: the server responded with a status of 500 ()"

[maliming]

What are the logs of 500 error？

[hehetiger]

ERROR 2024-09-27 16:01:18,397 [15 ] Mvc.ExceptionHandling.AbpExceptionFilter - Can't create component 'QuanStar.MOM.Web.Service.Core.EasyExcel.EasyExcelManager' as it has dependencies to be satisfied.

'QuanStar.MOM.Web.Service.Core.EasyExcel.EasyExcelManager' is waiting for the following dependencies:

• Service 'QuanStar.MOM.Web.Service.Core.EasyExcel.IExcelExportManager' which was not registered.
• Service 'QuanStar.MOM.Web.Service.Core.EasyExcel.IExcelImportManager' which was not registered.

Castle.MicroKernel.Handlers.HandlerException: Can't create component 'QuanStar.MOM.Web.Service.Core.EasyExcel.EasyExcelManager' as it has dependencies to be satisfied.

'QuanStar.MOM.Web.Service.Core.EasyExcel.EasyExcelManager' is waiting for the following dependencies:

• Service 'QuanStar.MOM.Web.Service.Core.EasyExcel.IExcelExportManager' which was not registered.

• Service 'QuanStar.MOM.Web.Service.Core.EasyExcel.IExcelImportManager' which was not registered.

  at Castle.MicroKernel.Handlers.DefaultHandler.AssertNotWaitingForDependency()
  at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
  at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.ResolveFromKernelByType(CreationContext context, ComponentModel model, DependencyModel dependency)
  at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
  at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context)
  at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
  at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
  at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
  at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, Arguments additionalArguments, IReleasePolicy policy, Boolean ignoreParentContext)
  at Castle.Windsor.MsDependencyInjection.ScopedWindsorServiceProvider.GetServiceInternal(Type serviceType, Boolean isOptional)
  at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
  at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.g__CreateController|0(ControllerContext controllerContext)
  at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
  at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
  --- End of stack trace from previous location ---
  at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|26_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)

[hehetiger]

The two interfaces that reported errors have already been injected through constructors

[maliming]

Service 'QuanStar.MOM.Web.Service.Core.EasyExcel.IExcelExportManager' which was not registered.
Service 'QuanStar.MOM.Web.Service.Core.EasyExcel.IExcelImportManager' which was not registered.