报Can‘t create component ‘xxx‘ as it has dependencies to be satisfied.的两种情况

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已于 2024-04-26 21:59:01 修改

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于 2024-04-26 21:54:16 首次发布

在ASP.NET Boilerplate（ABP）框架中，出现'Can't create component'错误通常表示存在未注册的依赖。这篇博客分析了两种导致该错误的情况：1) 构造函数中依赖注入未赋值；2) DbContext中缺少对应DbSet的定义。通过正确配置依赖注入和检查DbContext，可以解决这类问题。

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Mvc.ExceptionHandling.AbpExceptionFilter - Can't create component 'xxx' as it has dependencies to be satisfied.

'xxx' is waiting for the following dependencies:

详细信息：

Mvc.ExceptionHandling.AbpExceptionFilter - Can't create component 'xxx' as it has dependencies to be satisfied.

'xxx' is waiting for the following dependencies:
- Service 'Abp.Domain.Repositories.IRepository`2[[Patients.PatientEquipment, xxx.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.Guid, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]' which was not registered.

Castle.MicroKernel.Handlers.HandlerException: Can't create component 'xxxx.Patient.PatientDataAppService' as it has dependencies to be satisfied.

'xxx.Patient.PatientDataAppService' is waiting for the following dependencies:
- Serv