调试用Angular CLI'nge2e启动的量角器测试`

ng e2e

我准备好了 debug: true e2e/protractor.conf.js 文件。打电话时 browser.pause() 在测试中,我得到一个错误和提示,我应该使用 debugger; 关键字。但是Usign没有效果。

it('the user-menu should be present', () => {
  page.navigateTo();
  browser.pause();
  //debugger;
  let elem = page.getUserIconMenuButton();
  expect(elem.isPresent()).toBeTruthy();
});

我得到的警告是:

***********************************************************
* WARNING: _debugger module not available on Node.js 8    *
* and higher.                                             *
*                                                         *
* Use 'debugger' keyword instead:                       *
* https://github.com/angular/protractor/blob/master/docs/debugging.md                               
***********************************************************
C:\...\node_modules\protractor\built\debugger\debuggerCommons.js:14
  throw e;
  ^

Error: Cannot find module '_debugger'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (C:\...\node_modules\protractor\built\debugger\debuggerCommons.js:3:18)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

我试着按照说明书上的指示去做( https://github.com/angular/protractor/blob/master/docs/debugging.md )但这并不是真正的帮助。