问题是，当chipList的FormArray状态为INVALID时，未将chipList的errorState设置为true.

The problem is that the chipList's errorState isn't set to true when the chipList's FormArray status is INVALID.

我正面临着同样的问题，不知道为什么这不能立即解决，或者如何使用chipList的形式为FormArray隐式实现.

I'm facing the same problem and don't know why this isn't working out of the box or how this can be achieved implicitly with the chipList's form being a FormArray.

作为一种解决方法，您可以从FormArray听状态更改并手动设置chipList的errorState:

As a workaround you can listen to status changes from the FormArray and set the chipList's errorState manually:

@ViewChild('chipList') chipList: MatChipList;

ngOnInit() {
  this.myForm.get('names').statusChanges.subscribe(
    status => this.chipList.errorState = status === 'INVALID'
  );
}

https://stackblitz.com/edit/angular-4d5vfj-gywxjz