“在‘​​@angular/platform-b​​rowser’中找不到出口‘__platform_browser_private__’

Question

我正在開發一個角度應用程序。 在./node_modules/@angular/http/src/backends/xhr_backend.js 204:40-68中的 ERROR 中出現錯誤，而我運行： ng serve

“在‘​​@angular/platform-b​​rowser’中找不到出口‘ platform_browser_private ’

我注釋掉： import { __platform_browser_private__ } from '@angular/platform-browser' ; 在xhr_backends.js文件中

我正在使用角度 8。

app.module.ts文件：

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { NgModule } from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { HttpClientModule } from '@angular/common/http';
import { RouterModule } from '@angular/router';
import { platformBrowserDynamic } from "@angular/platform-browser-dynamic";

import { AppRoutingModule } from './app.routing';
import { NavbarModule } from './shared/navbar/navbar.module';
import { SidebarModule } from './sidebar/sidebar.module';

import { AppComponent } from './app.component';


import {NgbModule} from '@ng-bootstrap/ng-bootstrap';
import {ModalModule} from 'ngx-bootstrap/modal';

import { AdminLayoutComponent } from './layouts/admin-layout/admin-layout.component';
import { LoginpageComponent } from './loginpage/loginpage.component';
import { BrowserModule } from '@angular/platform-browser';
import { JsonfetchComponent } from './jsonfetch/jsonfetch.component';
import { BreezeBridgeHttpClientModule } from 'breeze-bridge2-angular';
import {FacebookModule} from "ngx-facebook";
import {UrlPermission} from "./urlPermission/url.permission";
import { HttpService } from "./services/http.service"
import { AccountService } from "./services/account.service";
//import {HttpModule} from "@angular/http";
import {platformBrowser} from "../../node_modules/@angular/platform-browser"


@NgModule({
  imports: [
    //LoginpageComponent,
    BrowserAnimationsModule,
    FormsModule,
    ReactiveFormsModule,
    RouterModule,
    HttpClientModule,
    NavbarModule,
    SidebarModule,
    AppRoutingModule,
    NgbModule,
    ModalModule.forRoot(),
    BrowserModule,
    //platformBrowserDynamic
    BreezeBridgeHttpClientModule,
  //  HttpModule,
    FacebookModule.forRoot(),


  ],
  declarations: [
    AppComponent,
    AdminLayoutComponent,
    LoginpageComponent,
    JsonfetchComponent,
  ],

  providers: [UrlPermission, AccountService, HttpService],
  bootstrap: [AppComponent],
  exports:[BrowserModule]

})
export class AppModule { }

package.json文件：

{
  "name": "lbd-free-angular-cli",
  "version": "1.4.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "install:clean": "rm -rf node_modules/ && rm -rf package-lock.json && npm install && npm start"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "8.0.0",
    "@angular/common": "8.0.0",
    "@angular/compiler": "8.0.0",
    "@angular/core": "8.0.0",
    "@angular/forms": "8.0.0",
    "@angular/platform-browser": "8.0.0",
    "@angular/platform-browser-dynamic": "8.0.0",
    "@angular/router": "8.0.0",
    "@ng-bootstrap/ng-bootstrap": "^4.2.1",
    "@ng-bootstrap/schematics": "^2.0.0-alpha.1",
    "@ngui/map": "0.30.3",
    "@types/googlemaps": "3.30.13",
    "@types/hammerjs": "^2.0.36",
    "angular-calendar": "^0.27.13",
    "angular-modal-service": "^0.15.3",
    "animate.css": "^3.7.0",
    "arrive": "2.4.1",
    "bootstrap": "^3.4.1",
    "bootstrap-notify": "3.1.3",
    "breeze-bridge-angular": "^4.0.2",
    "breeze-bridge2-angular": "^1.1.0",
    "breeze-client": "^1.7.2",
    "chartist": "0.11.0",
    "core-js": "2.5.7",
    "date-fns": "^1.30.1",
    "flatpickr": "^4.6.2",
    "googleapis": "33.0.0",
    "hammerjs": "^2.0.8",
    "igniteui-angular": "^8.0.5",
    "jquery": "^3.4.1",
    "jszip": "^3.2.2",
    "modclean": "^3.0.0-beta.1",
    "ng2-opd-popup": "^1.1.21",
    "ngx-bootstrap": "^4.3.0",
    "ngx-facebook": "^2.4.0",
    "perfect-scrollbar": "^1.4.0",
    "rxjs": "6.5.2",
    "rxjs-compat": "6.3.2",
    "sails": "^1.2.3",
    "tslib": "^1.10.0",
    "web-animations-js": "^2.3.2",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^0.800.6",
    "@angular/cli": "^8.1.2",
    "@angular/compiler-cli": "8.0.0",
    "@types/jasmine": "2.8.8",
    "@types/node": "10.9.4",
    "codelyzer": "^5.0.1",
    "igniteui-cli": "^4.2.2",
    "jasmine-core": "3.2.1",
    "jasmine-spec-reporter": "4.2.1",
    "karma": "3.0.0",
    "karma-chrome-launcher": "2.2.0",
    "karma-cli": "1.0.1",
    "karma-coverage-istanbul-reporter": "2.0.4",
    "karma-jasmine": "1.1.2",
    "karma-jasmine-html-reporter": "1.3.1",
    "protractor": "5.4.1",
    "ts-node": "7.0.1",
    "tslint": "5.11.0",
    "typescript": "3.4.5"
  }
}

Answer 1

將@angular/cli 從 6.x 升級到 8.x 時，我遇到了同樣的問題。

當我運行npm i我注意到以下警告

npm WARN 已棄用 @angular/http@2.4.10：切換到 @angular/common/http - 請參閱https://angular.io/guide/http

我相信您仍在嘗試import from '@angular/http'應用程序中某處的import from '@angular/http' 。

就我而言，更新我的app.module.ts

從

import {HttpModule} from "@angular/http";

到

import { HttpClientModule } from '@angular/common/http';

正如您已經完成的那樣，我還更新了我的web.service.ts

從

import { Http } from '@angular/http';

到

import { HttpClient } from '@angular/common/http';

它解決了我的問題。

另外，請確保在https://angular.io/guide/http 中提到的HttpClientModule之前導入您的BrowserModule

@NgModule({ 導入: [ BrowserModule, // 在 BrowserModule 之后導入 HttpClientModule.HttpClientModule, ],

希望這可以幫助！！

Answer 2

可能您的自動導入失敗。 嘗試改變：

import {platformBrowser} from "../../node_modules/@angular/platform-browser"

在

import {platformBrowser} from "@angular/platform-browser"

Answer 3

我認為這與 angular-ssr 無關

你需要跑

npm install --save @angular/platform-b​​rowser