<分区>
添加一些新的 html 代码后，我在 Angular 4 中遇到错误，早些时候表单工作正常。我尝试评论新代码，但它仍然无法正常工作 - 该怎么办 - 我研究了这个错误并尝试解决但没有任何帮助 - 我也没有得到问题的确切位置
我的代码:
<form role="form" #adminForm="ngForm" (ngSubmit)="logAdmin(adminForm.form)">
<div class="form-group">
<input class="form-control" [(ngModel)]="adminUsername" #adminUsername="ngModel" placeholder="Username" type="text" name="adminUsername"
required>
<div *ngIf="adminUsername.touched && adminUsername.errors">
<div class="alert alert-danger" *ngIf="adminUsername.errors.required">Username is required</div>
</div>
</div>
<div class="form-group">
<input class="form-control" [(ngModel)]="passwordText" #adminPassword="ngModel" id="adminPassword" name="adminPassword" placeholder="Password"
type="password" required>
</div>
<div class="alert alert-danger" *ngIf="adminPassword.touched && adminPassword.errors">Password is required</div>
<div class="col-md-6" style="text-align: right">
<button type="submit" class="btn-yellow" [disabled]="!adminForm.valid">Log In</button>
</div>
</form>
我得到的错误:
Error: Cannot assign to a reference or variable!
at _AstToIrVisitor.visitPropertyWrite (webpack-internal:///../../../compiler/esm5/compiler.js:26550:23)
at PropertyWrite.visit (webpack-internal:///../../../compiler/esm5/compiler.js:4895:24)
at convertActionBinding (webpack-internal:///../../../compiler/esm5/compiler.js:26000:45)
at eval (webpack-internal:///../../../compiler/esm5/compiler.js:28519:22)
at Array.forEach (<anonymous>)
at ViewBuilder._createElementHandleEventFn (webpack-internal:///../../../compiler/esm5/compiler.js:28515:18)
at nodes.(anonymous function) (webpack-internal:///../../../compiler/esm5/compiler.js:27934:27)
at eval (webpack-internal:///../../../compiler/esm5/compiler.js:28460:22)
at Array.map (<anonymous>)
at ViewBuilder._createNodeExpressions (webpack-internal:///../../../compiler/esm5/compiler.js:28459:56)
at _AstToIrVisitor.visitPropertyWrite (webpack-internal:///../../../compiler/esm5/compiler.js:26550:23)
at PropertyWrite.visit (webpack-internal:///../../../compiler/esm5/compiler.js:4895:24)
at convertActionBinding (webpack-internal:///../../../compiler/esm5/compiler.js:26000:45)
at eval (webpack-internal:///../../../compiler/esm5/compiler.js:28519:22)
at Array.forEach (<anonymous>)
at ViewBuilder._createElementHandleEventFn (webpack-internal:///../../../compiler/esm5/compiler.js:28515:18)
at nodes.(anonymous function) (webpack-internal:///../../../compiler/esm5/compiler.js:27934:27)
at eval (webpack-internal:///../../../compiler/esm5/compiler.js:28460:22)
at Array.map (<anonymous>)
at ViewBuilder._createNodeExpressions (webpack-internal:///../../../compiler/esm5/compiler.js:28459:56)
at resolvePromise (webpack-internal:///../../../../zone.js/dist/zone.js:824:31)
at resolvePromise (webpack-internal:///../../../../zone.js/dist/zone.js:795:17)
at eval (webpack-internal:///../../../../zone.js/dist/zone.js:873:17)
at ZoneDelegate.invokeTask (webpack-internal:///../../../../zone.js/dist/zone.js:425:31)
at Object.onInvokeTask (webpack-internal:///../../../core/esm5/core.js:4944:33)
at ZoneDelegate.invokeTask (webpack-internal:///../../../../zone.js/dist/zone.js:424:36)
at Zone.runTask (webpack-internal:///../../../../zone.js/dist/zone.js:192:47)
at drainMicroTaskQueue (webpack-internal:///../../../../zone.js/dist/zone.js:602:35)
at <anonymous>
我在互联网上搜索并找到了相同错误的问题和答案 - 但我没有找到任何适合我的解决方案......这就是为什么这个错误可能会重复出现但答案似乎与许多答案不同的原因。