Question

我在Angular 4中开发了一个前端应用程序。我的浏览器控制台出错，应用程序正常，但我想删除此错误：

Uncaught TypeError: Cannot read property 'core' of undefined
at webpackUniversalModuleDefinition (eval at webpackJsonp.../../../../script-loader/addScript.js.module.exports (addScript.js:9), <anonymous>:9:35)
at eval (eval at webpackJsonp.../../../../script-loader/addScript.js.module.exports (addScript.js:9), <anonymous>:10:3)
at eval (<anonymous>)
at webpackJsonp.../../../../script-loader/addScript.js.module.exports (addScript.js:9)
at Object.../../../../script-loader/index.js!../../../../@ng-bootstrap/ng-bootstrap/bundles/ng-bootstrap.js (ng-bootstrap.js?6c12:1)
at __webpack_require__ (bootstrap f869e51aadb3d665a815:54)
at Object.1 (scripts.bundle.js:65)
at __webpack_require__ (bootstrap f869e51aadb3d665a815:54)
at webpackJsonpCallback (bootstrap f869e51aadb3d665a815:25)
at scripts.bundle.js:1

你知道为什么我有这个错误吗？也许你想看看我的部分代码？

这里是我的angular-cli.json

{
  "project": {
    "version": "1.0.0",
    "name": "AIE"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [
        "assets"
      ],
      "index": "index.html",
      "main": "main.ts",
      "test": "test.ts",
      "tsconfig": "tsconfig.json",
      "prefix": "app",
      "mobile": false,
      "styles": [
        "assets/bootstrap/css/bootstrap.css",
        "../node_modules/vis/dist/vis.min.css",
        "../node_modules/primeng/resources/themes/omega/theme.css",
        "../node_modules/font-awesome/css/font-awesome.min.css",
        "../node_modules/primeng/resources/primeng.min.css",
        "styles.css"
      ],
      "scripts": [
        "../node_modules/@ng-bootstrap/ng-bootstrap/bundles/ng-bootstrap.js",
        "../node_modules/chart.js/src/chart.js",
        "../node_modules/vis/dist/vis.min.js"
      ],
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
    }
  ],
  "addons": [],
  "packages": [],
  "e2e": {
    "protractor": {
      "config": "./protractor.conf.js"
    }
  },
  "test": {
    "karma": {
      "config": "./karma.conf.js"
    }
  },
  "defaults": {
    "styleExt": "css",
    "prefixInterfaces": false,
    "inline": {
      "style": false,
      "template": false
    },
    "spec": {
      "class": false,
      "component": true,
      "directive": true,
      "module": false,
      "pipe": true,
      "service": true
    }
  }
}

我不知道问题是否在这里，所有应用程序都存在此错误。

Answer 1

问题是您将ng-bootstrap库放在CLI的scripts部分中。删除它，错误应该消失。

从"scripts": []部分删除以下内容：

“../ node_modules/@ng-bootstrap/ng-bootstrap/bundles/ng-bootstrap.js”，

您最好从组件中的@ng-bootstrap/ng-bootstrap导入符号。

未捕获的TypeError：无法读取属性＆＃39;核心＆＃39;未定义的

1 个答案: