ionic 4.0.0 icons for ios not working

Tái hiện các yêu cầu biểu tượng còn thiếu bằng ionic serve -l, sử dụng cấu hình asset trong angular.json và các phiên bản dependency trong package.json. So sánh các đường dẫn SVG ionicons được tham chiếu với các tệp được cung cấp bởi thư mục đầu vào đã cấu hình. Hoàn tất khi các yêu cầu đối với ios-book.svg, ios-cube.svg, ios-cog.svg và ios-log-out.svg không còn trả về 404.

Description:

Hi,

i upgrate today my ionic libary from 4.0.0-beta19 to 4.0.0
and after i run ionic serve -l the icons are not working and show me:

Failed to load resource: the server responded with a status of 404 (Not Found)
:8100/svg/ios-book.svg:1 Failed to load resource: the server responded with a status of 404 (Not Found)
:8100/svg/ios-cube.svg:1 Failed to load resource: the server responded with a status of 404 (Not Found)
:8100/svg/ios-cog.svg:1 Failed to load resource: the server responded with a status of 404 (Not Found)
VM35:1 GET http://localhost:8100/svg/ios-log-out.svg 404 (Not Found)

My angular.json:

            "assets": [
              {
                "glob": "**/*",
                "input": "src/assets",
                "output": "assets"
              },
              {
                "glob": "**/*.svg",
                "input": "node_modules/ionicons/dist/ionicons/svg",
                "output": "./svg"
              }
            ],

My Package.json:

{
  "name": "app",
  "version": "1.0.8",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~7.2.2",
    "@angular/common": "~7.2.2",
    "@angular/core": "~7.2.2",
    "@angular/forms": "~7.2.2",
    "@angular/http": "~7.2.2",
    "@angular/platform-browser": "~7.2.2",
    "@angular/platform-browser-dynamic": "~7.2.2",
    "@angular/router": "~7.2.2",
    "@ionic-native/app-version": "5.0.0",
    "@ionic-native/core": "5.0.0",
    "@ionic-native/local-notifications": "5.0.0",
    "@ionic-native/network": "5.0.0",
    "@ionic-native/splash-screen": "5.0.0",
    "@ionic-native/status-bar": "5.0.0",
    "@ionic/angular": "~4.0.0",
    "@ionic/storage": "2.2.0",
    "@types/axios": "^0.14.0",
    "axios": "^0.18.0",
    "cordova-android": "^7.1.4",
    "cordova-ios": "^4.5.5",
    "cordova-plugin-app-version": "0.1.9",
    "cordova-plugin-badge": "0.8.8",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-ionic-keyboard": "^2.1.3",
    "cordova-plugin-ionic-webview": "^3.1.1",
    "cordova-plugin-local-notification": "0.9.0-beta.2",
    "cordova-plugin-network-information": "2.0.1",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "core-js": "^2.6.3",
    "ngx-pagination": "^3.2.1",
    "rxjs": "~6.3.3",
    "videogular2": "^6.4.0",
    "zone.js": "~0.8.29"
  },
  "devDependencies": {
    "@angular-devkit/architect": "~0.12.3",
    "@angular-devkit/build-angular": "^0.12.3",
    "@angular-devkit/core": "~7.2.2",
    "@angular-devkit/schematics": "~7.2.2",
    "@angular/cli": "~7.2.2",
    "@angular/compiler": "~7.2.2",
    "@angular/compiler-cli": "~7.2.2",
    "@angular/language-service": "~7.2.2",
    "@ionic/angular-toolkit": "~1.2.2",
    "@ionic/lab": "~1.0.19",
    "@types/core-js": "^2.5.0",
    "@types/jasmine": "~3.3.7",
    "@types/jasminewd2": "~2.0.6",
    "@types/node": "~10.12.18",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~3.3.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.4",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "~5.4.2",
    "ts-node": "~7.0.1",
    "tslint": "~5.12.1",
    "typescript": "~3.2.4"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-whitelist": {},
      "cordova-plugin-statusbar": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-webview": {},
      "cordova-plugin-ionic-keyboard": {},
      "cordova-plugin-streaming-media": {},
      "cordova-plugin-network-information": {},
      "cordova-plugin-local-notification": {},
      "cordova-plugin-app-version": {}
    },
    "platforms": [
      "android",
      "ios"
    ]
  }
}

My ionic info:

Ionic:

   ionic (Ionic CLI)             : 4.3.1 (/usr/local/lib/node_modules/ionic)
   Ionic Framework               : @ionic/angular 4.0.0
   @angular-devkit/build-angular : 0.12.3
   @angular-devkit/schematics    : 7.2.3
   @angular/cli                  : 7.2.3
   @ionic/angular-toolkit        : 1.2.2

Cordova:

   cordova (Cordova CLI) : 8.1.2 (cordova-lib@8.1.1)
   Cordova Platforms     : android 7.1.4, ios 4.5.5
   Cordova Plugins       : cordova-plugin-ionic 5.2.7, cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 2.2.5, (and 11 other plugins)

Thanks