Uncaught TypeError: Object(...) is not a function in the browser

Question

我正在尝试使用 Ionic Image Loader 进行图像加载和缓存。编译的时候没有报错，但是在浏览器中，却显示如下错误。我正在粘贴 package.json 文件中的详细信息。我是 ionic 和 angular 的新手。请让我知道如何解决此问题。

Uncaught TypeError: Object(...) is not a function  at index.js:1193 
at Module../node_modules/@ionic-native/file/index.js (index.js:1370) 
at __webpack_require__ (bootstrap:84) at Module../node_modules/ionic-image-loader/dist/image-loader.module.js (image-loader.module.js:1)    
at __webpack_require__ (bootstrap:84) at Module../node_modules/ionic-image-loader/dist/index.js (index.js:1) at __webpack_require__ (bootstrap:84)  
at Module../src/app/app-routing.module.ts (main.js:494) 
at __webpack_require__ (bootstrap:84) 
at Module../src/app/app.module.ts (app.component.ts:12)

我的package.json如下所示

    {
  "name": "blank",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "https://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "~8.1.2",
    "@angular/core": "~8.1.2",
    "@angular/forms": "~8.1.2",
    "@angular/platform-browser": "~8.1.2",
    "@angular/platform-browser-dynamic": "~8.1.2",
    "@angular/router": "~8.1.2",
    "@ionic-native/core": "^5.0.0-beta.14",
    "@ionic-native/file": "^4.20.0",
    "@ionic-native/file-transfer": "^5.20.0",
    "@ionic-native/splash-screen": "^5.0.0",
    "@ionic-native/status-bar": "^5.0.0",
    "@ionic/angular": "^4.7.1",
    "cordova-plugin-file": "6.0.2",
    "core-js": "^2.5.4",
    "ionic-image-loader": "^6.3.3",
    "rxjs": "^6.5.4",
    "tslib": "^1.9.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/architect": "~0.801.2",
    "@angular-devkit/build-angular": "~0.801.2",
    "@angular-devkit/core": "~8.1.2",
    "@angular-devkit/schematics": "~8.1.2",
    "@angular/cli": "~8.1.2",
    "@angular/compiler": "~8.1.2",
    "@angular/compiler-cli": "~8.1.2",
    "@angular/language-service": "~8.1.2",
    "@ionic/angular-toolkit": "^2.1.1",
    "@types/jasmine": "~3.3.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "^5.0.0",
    "jasmine-core": "^3.5.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.1.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.15.0",
    "typescript": "~3.4.3"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-file": {}
    }
  }
}

Answer 1

这很可能是因为版本不匹配。

当前版本 ionic-image-loader does not yet support v5 of @ionic-native/file but there is a beta version available which does support it.

确保所有 @ionic-native/* 包都在同一个主要版本上。想用beta版就用v5，否则就用v5和最新稳定版ionic-image-loader.

Uncaught TypeError: Object(...) is not a function in the browser

Uncaught TypeError: Object(...) is not a function in the browser

ionic-framework

imageloader

angular