Angular中错误“Can't bind to 'formGroup' since it isn't a known property of 'form'”

你好！我是Angular和TypeScript的新手，正在尝试创建一个简单的注册表单。我有一个组件，在其中从'@angular/forms'导入了FormGroup和FormControl： ```typescript import { Component } from '@angular/core'; import { FormGroup, FormControl } from '@angular/forms'; @Component({ selector: 'app-register', template: `

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` }) export class RegisterComponent { registerForm = new FormGroup({ email: new FormControl(''), password: new FormControl('') }); } ``` 但在运行应用程序时，浏览器控制台出现错误： ``` Can't bind to 'formGroup' since it isn't a known property of 'form'. ``` 我检查了所有导入——它们似乎是正确的。我做错了什么？在Angular 2+中，fo