Angular 4.4.0-4.4.2生产构建投掷＆＃34;没有NgForm的提供者！＆＃34;错误

时间：2017-09-19 14:25:14

标签： angular

我正在

  

＆＃34;没有e！＆＃34;

的提供者
在生产模式下运行Angular应用程序时出现

错误。在开发模式下，它工作正常。 我收到了以下错误：

enter image description here

我尝试使用ng build -aot现在收到错误

  

＆＃34;错误：没有NgForm的提供者！＆＃34;

有人知道如何解决它吗？

以下是我正在使用的package.json文件：

{
  "name": "app-web",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "hmr": "ng serve --hmr -e=hmr",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^4.2.4",
    "@angular/common": "^4.2.4",
    "@angular/compiler": "^4.2.4",
    "@angular/core": "^4.2.4",
    "@angular/forms": "^4.2.4",
    "@angular/http": "^4.2.4",
    "@angular/platform-browser": "^4.2.4",
    "@angular/platform-browser-dynamic": "^4.2.4",
    "@angular/router": "^4.2.4",
    "@types/bootstrap-datepicker": "0.0.10",
    "@types/d3": "^4.10.0",
    "@types/jquery": "^3.2.11",
    "bootstrap": "^3.3.7",
    "bootstrap-datepicker": "^1.7.1",
    "core-js": "^2.4.1",
    "d3": "^4.10.2",
    "file-saver": "^1.3.3",
    "jquery": "^3.2.1",
    "moment": "^2.18.1",
    "ng-bootstrap-form-validation": "^1.0.3",
    "ng2-ckeditor": "^1.1.9",
    "ngx-bootstrap": "^1.8.1",
    "ngx-malihu-scrollbar": "^1.2.1",
    "rxjs": "^5.4.2",
    "zone.js": "^0.8.14"
  },
  "devDependencies": {
    "@angular/cli": "1.3.0",
    "@angular/compiler-cli": "^4.2.4",
    "@angular/language-service": "^4.2.4",
    "@angularclass/hmr": "^2.1.3",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "~3.1.1",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.3.2",
    "typescript": "~2.3.3"
  }
}

2 个答案:

答案 0 :(得分：11)

<强>更新

Angular v4.4.3应解决问题

以前的版本：

我假设您正在使用angular 4.x版本。

这是已知的问题。等待till new angular version is published或将角度版本设置为4.3.6

另见

答案 1 :(得分：0)

我这样解决：

import { FormsModule, NgForm } from '@angular/forms';
import { myComponent } from './my.component';
describe('myComponent', () => {
let component: myComponent;
let fixture: ComponentFixture<EmailInputsComponent>;
beforeEach(async(() => {
    TestBed.configureTestingModule({
        imports: [FormsModule],
        declarations: [myComponent],
        providers: [NgForm] // <- LOOK AT ME I AM A PROVIDER!!!
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