Demo的UI项目问题

[dafeifei0218]

node: v22.10.0
npm: 10.9.0
yarn: 1.22.22

✘ [ERROR] TS-996001: The class 'StudentListComponent' is listed in the declarations of the NgModule 'DemoModule', but is not a directive, a component, or a pipe. Either remove it from the NgModule's declarations, or add an appropriate Angular decorator. [plugin angular-compiler]