我开发了一个带有Angular 4的ASP.NET Core 2.0应用程序，我试图将其更新为Angular 5。
要进行更新，我已按照本教程Upgrade Angular 4 app to Angular 5 with Visual Studio 2017进行了操作。
但是当我使用节点运行应用程序时，我收到以下消息：
info: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[0]
User profile is available. Using 'C:\Users\Uic18.IC.000\AppData\Local\ASP.
NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at
rest.
Hosting environment: Development
Content root path: D:\Desarrollo\MyApp\AngularWebApplic
ation\AngularWebApplication
Now listening on: http://localhost:50356
Application started. Press Ctrl+C to shut down.
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
Request starting HTTP/1.1 GET http://localhost:50356/
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
Executing action method AngularWebApplication.Controllers.HomeController.I
ndex (AngularWebApplication) with arguments ((null)) - ModelState is Valid
info: Microsoft.AspNetCore.Mvc.ViewFeatures.Internal.ViewResultExecutor[1]
Executing ViewResult, running view at path /Views/Home/Index.cshtml.
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
Executed action AngularWebApplication.Controllers.HomeController.Index (An
gularWebApplication) in 3819.9801ms
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
Request finished in 4181.4943ms 200 text/html; charset=utf-8
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
Request starting HTTP/1.1 GET http://localhost:50356/dist/main-client.js?v
=8SjbzGJ0XAUj8-zoVkv-_b_lOUJstsV6wmYaawCZjd4
info: Microsoft.AspNetCore.NodeServices[0]
webpack built 87cdc734d642ca666961 in 10958ms
fail: Microsoft.AspNetCore.NodeServices[0]
Hash: 87cdc734d642ca666961
Version: webpack 3.11.0
Time: 10958ms
Asset Size Chunks Chunk Names
main-client.js 4.12 MB 0 [emitted] [big] main-client
main-client.js.map 5.07 MB 0 [emitted] main-client
[0] ./node_modules/@angular/core/esm5/core.js 628 kB {0} [built]
[79] multi event-source-polyfill webpack-hot-middleware/client?path=__we
bpack_hmr&dynamicPublicPath=true ./ClientApp/boot.browser.ts 52 bytes {0} [built
]
[80] ./node_modules/event-source-polyfill/src/eventsource.js 21.4 kB {0}
[built]
[81] (webpack)-hot-middleware/client.js?path=__webpack_hmr&dynamicPublic
Path=true 7.35 kB {0} [built]
[82] (webpack)/buildin/module.js 517 bytes {0} [built]
[83] ./node_modules/querystring-es3/index.js 127 bytes {0} [built]
[86] ./node_modules/strip-ansi/index.js 161 bytes {0} [built]
[88] (webpack)-hot-middleware/client-overlay.js 2.21 kB {0} [built]
[93] (webpack)-hot-middleware/process-update.js 4.33 kB {0} [built]
[94] ./ClientApp/boot.browser.ts 1.01 kB {0} [built]
[95] ./ClientApp/polyfills.ts 2.54 kB {0} [built]
[148] ./node_modules/reflect-metadata/Reflect.js 52.3 kB {0} [built]
[150] ./node_modules/bootstrap/dist/js/bootstrap.js 115 kB {0} [built]
[156] ./node_modules/@angular/platform-browser-dynamic/esm5/platform-brow
ser-dynamic.js 24.8 kB {0} [built]
[158] ./ClientApp/app/app.module.browser.ts 1.49 kB {0} [built]
+ 246 hidden modules
WARNING in ./node_modules/@angular/core/esm5/core.js
6558:15-36 Critical dependency: the request of a dependency is an expressi
on
@ ./node_modules/@angular/core/esm5/core.js
@ ./ClientApp/boot.browser.ts
@ multi event-source-polyfill webpack-hot-middleware/client?path=__webpac
k_hmr&dynamicPublicPath=true ./ClientApp/boot.browser.ts
WARNING in ./node_modules/@angular/core/esm5/core.js
6578:15-102 Critical dependency: the request of a dependency is an express
ion
@ ./node_modules/@angular/core/esm5/core.js
@ ./ClientApp/boot.browser.ts
@ multi event-source-polyfill webpack-hot-middleware/client?path=__webpac
k_hmr&dynamicPublicPath=true ./ClientApp/boot.browser.ts
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
Request finished in 4074.9028ms 200 application/javascript; charset=UTF-8
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
Request starting HTTP/1.1 GET http://localhost:50356/dist/__webpack_hmr
我只在浏览器中看到一条文字说：正在加载......
有一条消息fail: Microsoft.AspNetCore.NodeServices[0]，但没有别的。
如果我将Views/Home/Index.cshtml文件中的更改从<app>Loading...</app>回滚到<app asp-prerender-module="ClientApp/dist/main-server">Loading...</app>，我会收到另一个错误：
NodeInvocationException: No provider for PlatformRef!
Error: No provider for PlatformRef!
at Error (native)
要解决这个问题，我已经遵循了这个SO Answer而没有成功。
关于如何解决这个问题的任何想法？