问角度验证错误为'ngClass‘，因为它不是'div’的已知属性。(

EN

import { Component, OnInit } from "@angular/core"
import { Employee } from "../../../templates/employee/employee"
import { Validators, FormGroup, FormBuilder } from "@angular/forms"
@Component({
    selector: "customer-ui",
    templateUrl: "../../../templates/customer/customer.html"
})
export class JamComponent implements OnInit {
    EmpleoyeeForm: FormGroup;
    public constructor(private fb: FormBuilder) {}
    ngOnInit(): void {
        this.EmpleoyeeForm = this.fb.group({
            EmpName: ['', [Validators.required]]

        })
    }

<form class="form-horizontal" novalidate [formGroup]="EmpleoyeeForm">

    <fieldset>
        <div class="form-group" [ngClass]="{'has-error': (EmpleoyeeForm.get('EmpName').touched ||
                                                  EmpleoyeeForm.get('EmpName').dirty) &&
                                                    !EmpleoyeeForm.get('EmpName').valid }">

            <label for="name">Name</label>
            <input type="text" class="form-control" formControlName="EmpName" [(ngModel)]="EmpName" />

        </div>
    </fieldset>
</form>