生产构建中的 Angular4 编译错误："Property controls does not exist on type AbstractControl"

Question

我的代码在开发模式下构建和运行完美。当我为生产构建时，我在这一行收到此错误：

        <div *ngFor="let child of form.controls.emailsArray.controls; let i=index">

表单是这样构建的：

  public form: FormGroup;
  private control: FormArray;
  private emailsModel = { emails: ['','','','','']}  // the model, ready to hold the emails
  private fb : FormBuilder;

  constructor() {}

  ngOnInit() {
    this.fb = new FormBuilder;
        this.form = this.fb.group({
      emailsArray: this.fb.array([])
    });
    this.control = <FormArray>this.form.controls['emailsArray'];
    this.patch();    
  }

  private patch(): void {
    // iterate the object model and extra values, binding them to the controls
    this.emailsModel.emails.forEach((item) => {
      this.control.push(this.patchValues(item));
    })
  }

  private patchValues(item: string): AbstractControl {
    return this.fb.group({
      email: [item, Validators.compose([emailValidator])] 
    })
  }

那么如何在 html 中引用这些子控件？

注意：类似于，除了我的错误出现在HTML，而不是打字稿。

Answer 1

我不确定这是否是个好习惯，但将 HTML 更改为此方法有效：

<div *ngFor="let child of form.controls.emailsArray['controls']; let i=index">

Answer 2

对我来说这解决了它：

改变

meeting.controls.schedule.controls['scheduleEnd']

至

meeting.controls.schedule['controls'].frequency

生产构建中的 Angular4 编译错误："Property controls does not exist on type AbstractControl"

Angular4 compile error on production build: "Property controls does not exist on type AbstractControl"

angular

angular-reactive-forms