Angularjs2-双向绑定 Can't bind to 'ngModel' since it isn't a known property of 'input'.

双向绑定时

Can't bind to 'ngModel' since it isn't a known property of 'input'.

 

原因：app.module.ts中没有import HttpModule

 

参考：stackoverflow

 

注意：当在表单中使用[(ngModel)]时，必须要定义name属性。

<input type="text" class="form-control" id="name" required [(ngModel)]="model.name" name="name">