angular - 无法绑定(bind)到 'ngIf'，因为它不是生产版本中 'div' 的已知属性

Question

我可以在本地运行。仅在生产构建中出现错误。

我用过

 import { CommonModule } from '@angular/common';
 imports:      [  CommonModule ]

完整错误如下所示。

client:101 Template parse errors:enter code here`Can't bind to 'ngIf' since it isn't a known property of 'div'. 
("move" class="transport-remove">Remove</a></div>
         <div id="carTypeDiv_1" class="veh-inv-out" [ERROR ->]*ngIf="vehicleData.vesselType == 'road'">
            <ul id="carTypeList_1" class="veh-slides">
    "): VehicleDirective@10:52
Property binding ngIf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("t:" (click)="removeField($event)" title="Remove" class="transport-remove">Remove</a></div>
         [ERROR ->]<div id="carTypeDiv_1" class="veh-inv-out" *ngIf="vehicleData.vesselType == 'road'">
            <ul "): VehicleDirective@10:9
Can't bind to 'ngForOf' since it isn't a known property of 'option'. ("l)]="vehicleData.makeSelect" (change)="appendModel($event.target.value)">
                  <option [ERROR ->]*ngFor="let make of vehicle.makes">{{make}}</option>
               </select>
            </div>
"): VehicleDirective@28:26
Property binding ngForOf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("[(ngModel)]="vehicleData.makeSelect" (change)="appendModel($event.target.value)">
                  [ERROR ->]<option *ngFor="let make of vehicle.makes">{{make}}</option>
               </select>
            </d"): VehicleDirective@28:18
Can't bind to 'ngForOf' since it isn't a known property of 'option'. ("t" id="modelSelect" [(ngModel)]="vehicleData.modelSelect" class="prefixbox">
               <option [ERROR ->]*ngFor="let model of vehicle.models">{{model}}</option>
            </select></div>
            <br c"): VehicleDirective@36:23
Property binding ngForOf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("delSelect" id="modelSelect" [(ngModel)]="vehicleData.modelSelect" class="prefixbox">
               [ERROR ->]<option *ngFor="let model of vehicle.models">{{model}}</option>
            </select></div>
         "): VehicleDirective@36:15
Can't bind to 'ngForOf' since it isn't a known property of 'option'. ("refixbox">
                        <option value="">SELECT</option>
                        <option [ERROR ->]*ngFor="let year of vehicle.years">{{year}}</option>
                     </select>
                 "): VehicleDirective@47:32
Property binding ngForOf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("class="prefixbox">
                        <option value="">SELECT</option>
                        [ERROR ->]<option *ngFor="let year of vehicle.years">{{year}}</option>
                     </select>
         "): VehicleDirective@47:24
Can't bind to 'ngForOf' since it isn't a known property of 'option'. ("ateSelect" [(ngModel)]="vehicleData.stateSelect" class="prefixbox">
                        <option [ERROR ->]*ngFor="let state of vehicle.regStates">{{state}}</option>
                     </select>
           "): VehicleDirective@55:32
Property binding ngForOf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("" id="stateSelect" [(ngModel)]="vehicleData.stateSelect" class="prefixbox">
                        [ERROR ->]<option *ngFor="let state of vehicle.regStates">{{state}}</option>
                     </select>
   "): VehicleDirective@55:24
Can't bind to 'ngForOf' since it isn't a known property of 'option'. ("lorSelect" [(ngModel)]="vehicleData.colorSelect" class="prefixbox">
                        <option [ERROR ->]*ngFor="let color of vehicle.colors">{{color}}</option>
                     </select>
              "): VehicleDirective@68:32
Property binding ngForOf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("" id="colorSelect" [(ngModel)]="vehicleData.colorSelect" class="prefixbox">
                        [ERROR ->]<option *ngFor="let color of vehicle.colors">{{color}}</option>
                     </select>
      "): VehicleDirective@68:24

这是什么原因。我已经验证了许多解决方案。找不到灵魂。相同的代码在本地运行良好。

Answer 1

我遇到了完全相同的错误，我已经包含了 CommonModule 和 BrowserModule，但我仍然在我的浏览器上看到相同的错误消息。

最后，我发现我的问题的原因是我忘记将我的组件添加到 app.module.ts，以防其他人正在处理相同的行为。