Angular 财产'；名称'；不存在于类型'；AppComponent'；

下面是我的表格。在ng serve-o期间工作正常。没有提出任何问题。没有出现错误

<form #f="ngForm" (ngSubmit)="onSubmit(f.value)">
    <div class="form-group">
        <label for="customerName">Your Mobile Money Account Name</label>
        <input type="text" class="form-control" id="customerName" aria-describedby="emailHelp" placeholder="e.g Pantang Francias"
            name="name" [(ngModel)]="name">
        <small id="emailHelp" class="form-text text-muted">This can be name used in registering the Mobile Money</small>
    </div>
    <div class="form-group">
        <label for="network">Mobile Money Network</label>
        <select class="form-control" name="network" id="network" aria-describeby="networkHelp" [(ngModel)]="network" required>
                  <option value="airtel-gh">Airtel Mobile Money</option>
                  <option value="tigo-gh">Tigo Cash</option>
                  <option value="mtn-gh">MTN Mobile Money</option>
                </select>
        <small id="networkHelp" class="form-text text-muted">We currently support only Airtel Mobile Money</small>
    </div>
    <div class="form-group">
        <label for="number">Your Mobile Number</label>
        <input type="number" name="phone_number" class="form-control" id="phone_number" placeholder="e.g 0269201707" aria-describeby="phone_numberHelp"
            [(ngModel)]="phone_number" required maxlength="10">
        <small id="phone_numberHelp">The Mobile Money number payment will come from. It should belong to you.</small>
    </div>
    <div class="form-group">
        <label for="internet_package">Internet Package</label>
        <select class="form-control" name="internet_package" id="internet_package" aria-describeby="packageHelp" [(ngModel)]="internet_package"
            required>
                  <option value="1gig">1 Gig - 30 Days - 5 Cedis</option>
                  <option value="3gig">3 Gig - 30 Days - 10 Cedis</option>
                  <option value="10gig">10 Gig - 30 Days - 30 Cedis</option>
                </select>
        <small id="packageHelp" class="form-text text-muted">Choose your package</small>
    </div>
    <a class="btn btn-primary text-white" role="button" data-toggle="modal" data-target="#reviewPurchase">Review Purchase</a>
    <!-- Review Purchase Modal -->
    <div class="modal fade" id="reviewPurchase" tabindex="-1" role="dialog" aria-labelledby="reviewPurchase" aria-hidden="true">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="reviewPurchase">Review your Purchase</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
                    <ul class="list-group">
                        <li class="list-group-item">Name: <strong>{{ f.value.name}}</strong></li>
                        <li class="list-group-item">Mobile Money Network: <strong>{{ f.value.network }}</strong></li>
                        <li class="list-group-item">Your Number: <strong>0{{ f.value.phone_number }}</strong></li>
                        <li class="list-group-item">Internet Package: <strong>{{ f.value.internet_package }}</strong></li>
                    </ul>
                    <hr>
                    <p class="lead text-center text-danger" *ngIf="!f.valid">
                        You have not fully completed the form. Go back and fill all the fields.
                    </p>
                    <p class="lead text-center" *ngIf="f.valid">
                        Proceed below if details above is correct.
                    </p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
                    <button type="submit" [disabled]="!f.valid" role="button" class="btn btn-primary">Make Payment</button>
                </div>
            </div>
        </div>
    </div>
</form>

---

在这一行中，您试图绑定到名为

name

<input type="text" class="form-control" id="customerName" aria-describedby="emailHelp" placeholder="e.g Pantang Francias"
        name="name" [(ngModel)]="name">

---

组件中没有

name

变量，因此出现错误。

我是通过在实现OnInit的TS文件类中声明

[（ngModel）]

的属性得到它的

HTML文件

TS文件

@组件({
选择器：'应用程序根'，
templateUrl:“./app.component.html”，
样式URL:['./app.component.css']
})
导出类AppComponent实现OnInit{
name_test:String=“”；
}

只要专注于

name\u测试

你就会得到答案

---

学习愉快

在app.component.html中，您创建了一个包含输入字段的表单，并声明了绑定输入字段数据的模型

<input type="text" class="form-control" id="customerName" aria-describedby="emailHelp" placeholder="e.g Pantang Francias"
        name="name" [(ngModel)]="name">

<select class="form-control" name="network" id="network" aria-describeby="networkHelp" [(ngModel)]="network" required>

<input type="number" name="phone_number" class="form-control" id="phone_number" placeholder="e.g 0269201707" aria-describeby="phone_numberHelp"
        [(ngModel)]="phone_number" required maxlength="10">

---

这些型号-姓名、网络、电话号码需要添加到app.component.ts中

它们是否都存在于组件中？@AlexanderLeonov编辑添加我的

AppComponent

，这是您的答案。您必须在组件中显式声明所有这些属性。JIT允许这种技巧，而AOT不允许。它抱怨的所有其他属性也是如此。

<input type="text" class="form-control" id="customerName" aria-describedby="emailHelp" placeholder="e.g Pantang Francias"
        name="name" [(ngModel)]="name">

<select class="form-control" name="network" id="network" aria-describeby="networkHelp" [(ngModel)]="network" required>

<input type="number" name="phone_number" class="form-control" id="phone_number" placeholder="e.g 0269201707" aria-describeby="phone_numberHelp"
        [(ngModel)]="phone_number" required maxlength="10">