Question

我试图通过Visual Studio代码运行Angular 5应用程序 - 代码编译没有错误，但我收到了＆＃34; fs.existsSync不是函数＆＃34;在localhost上查看时出错：4200。完整的错误消息是

module.exports< devmode.js:33 <anonymous> devmode.js:31 <anonymous> devmode.js:1 ./node_modules/selenium-webdriver/lib/devmode.js http://localhost:4200/vendor.bundle.js:1084:1
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 <anonymous> http.js:32 <anonymous> http.js:1 ./node_modules/selenium-webdriver/lib/http.js http://localhost:4200/vendor.bundle.js:1108:1
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 <anonymous> index.js:29 <anonymous> index.js:1 ./node_modules/selenium-webdriver/http/index.js http://localhost:4200/vendor.bundle.js:1044:1
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 <anonymous> login.component.ts:1 ./src/app/login/login.component.ts http://localhost:4200/main.bundle.js:284:1
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 <anonymous> app.module.ts:24 ./src/app/app.module.ts http://localhost:4200/main.bundle.js:107:1
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 <anonymous> main.ts:4 ./src/main.ts http://localhost:4200/main.bundle.js:403:1
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 [0] http://localhost:4200/main.bundle.js:411:18
__webpack_require__ http://localhost:4200/inline.bundle.js:55:12 webpackJsonpCallback http://localhost:4200/inline.bundle.js:26:23 <anonymous> http://localhost:4200/main.bundle.js:1:1

有关此错误的其他问题提到Electron，但我没有使用该软件包。

我对所有这些都不熟悉，所以不知道我应该提供哪些其他信息。如果有帮助，我的npm版本是5.6.0，节点是版本6.11.0，我的package.json的内容是：

"dependencies": {
    "@angular/animations": "^5.2.0",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/router": "^5.2.0",
    "core-js": "^2.4.1",
    "ngx-bootstrap": "^2.0.2",
    "ngx-cookie-service": "^1.0.10",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "~1.7.0",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "~2.5.3"
  }

我需要在代码中寻找什么来修复此错误？

由于

Answer 1

好吧，这似乎是从您的编辑器自动导入的流氓。它是从HttpClient而不是Angular导入WebDriver的。使用这个：

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

fs.existsSync不是Angular中的函数（5）

1 个答案: