Angular Upgrade Error : 5.2.0 -> 6.0.9

Question

将我的应用程序从 Angular 5.2.10 迁移到 6.0.9 时出现以下错误。我使用了描述的迁移步骤 here

Error: StaticInjectorError(AppModule)[ApplicationRef -> Injector]: 
  StaticInjectorError(Platform: core)[ApplicationRef -> Injector]: 
    NullInjectorError: No provider for Injector!
    at NullInjector.push../node_modules/@angular/core/fesm5/core.js.NullInjector.get (core.js:1034)
    at resolveToken (core.js:1271)
    at tryResolveToken (core.js:1216)
    at StaticInjector.push../node_modules/@angular/core/fesm5/core.js.StaticInjector.get (core.js:1113)
    at resolveToken (core.js:1271)
    at tryResolveToken (core.js:1216)
    at StaticInjector.push../node_modules/@angular/core/fesm5/core.js.StaticInjector.get (core.js:1113)
    at resolveNgModuleDep (core.js:8161)
    at _createClass (core.js:8208)
    at _createProviderInstance (core.js:8178)

错误信息截图

Angular 版本: 6.0.9

浏览器:

[X] Chrome（桌面）版本 67.0.3396.99

其他信息:

节点版本：8.9.4
平台：Windows

Answer 1

通过创建一个新的 Angular6 应用程序并将现有应用程序代码移入其中，问题得到了解决。 here 提到的自动升级不起作用。

Angular Upgrade Error : 5.2.0 -> 6.0.9

Angular Upgrade Error : 5.2.0 -> 6.0.9

upgrade

angular

angular6