Can‘t bind to ‘formGroup‘ since it isn‘t a known property of ‘form‘

Can‘t bind to ‘formGroup‘ since it isn‘t a known property of ‘form‘

angular报错问题，使用form表单的时候，报错Can’t bind to ‘formGroup’ since it isn’t a known property of ‘form’
解决办法

使用了form-group和formControlName的情况下，在所属模块的根module.ts文件中，需要引入ReactiveFormsModule
import { FormsModule, ReactiveFormsModule} from '@angular/forms';
imports[FormsModule,ReactiveFormsModule
]