formGroup需要一个formGroup实例.请传入一个.如何修复此错误

Question

我的HTML源代码如下，

<p>
<mat-form-field appearance="legacy" [formGroup]="form" (submit)="onFormSubmit()">
<mat-label>Add a List</mat-label>
<input [(ngModel)]="listName" matInput placeholder="Placeholder" formControlName="name" #nameInput fxFlex>
<mat-icon matSuffix class="check" (click)="onFormSubmit()">check</mat-icon>
<mat-icon matSuffix class="clear" (click)="closeForm()">clear</mat-icon>
</mat-form-field>
</p>

当运行此代码时，控制台上显示以下错误，

ERROR Error: formGroup expects a FormGroup instance. Please pass one in.
Example:

<div [formGroup]="myGroup">
<input formControlName="firstName">
</div>
In your class:
this.myGroup = new FormGroup({
firstName: new FormControl()
});

如何修复此错误？

Answer 1

打字？您写道：

[formGroup]="form"

应该是：

[formGroup]="myGroup"