角分量不是已知元素
最近，当我尝试运行服务命令时，我将Angular项目从Angular 8升级到Angular 9。
error NG8001: 'app-abcd-breadcrumb' is not a known element:
1. If 'app-abcd-breadcrumb' is an Angular component, then verify that it is part of this module.
2. If 'app-abcd-breadcrumb' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
error NG8001: 'router-outlet' is not a known element:
1. If 'router-outlet' is an Angular component, then verify that it is part of this module.
2. If 'router-outlet' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
5 <router-outlet></router-outlet>
有人可以帮我吗？这些组件是我为项目创建的组件。它不是任何库组件
I have recently upgraded my angular project from angular 8 to angular 9, when I try to run serve command I am getting below error.
error NG8001: 'app-abcd-breadcrumb' is not a known element:
1. If 'app-abcd-breadcrumb' is an Angular component, then verify that it is part of this module.
2. If 'app-abcd-breadcrumb' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
error NG8001: 'router-outlet' is not a known element:
1. If 'router-outlet' is an Angular component, then verify that it is part of this module.
2. If 'router-outlet' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
5 <router-outlet></router-outlet>
Can anyone please help me on this ? these components are the components created by me for the project. it is not any library component
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您需要在模块内声明组件。
You need to declare the component inside the module.