javascript - angular2删除node_modules后npm start出错

Question

删除了node_module后使用cnpm i重新安装，发现问题了，使用node5.12可以，node6和7都不行，为什么？

[1] Did not detect a `bs-config.json` or `bs-config.js` override file. Using lite-server defaults...
[1] ** browser-sync config **
[1] { injectChanges: false,
[1]   files: [ './**/*.{html,htm,css,js}' ],
[1]   watchOptions: { ignored: 'node_modules' },
[1]   server: { baseDir: './', middleware: [ [Function], [Function] ] } }
[1] dyld: lazy symbol binding failed
[1] : Symbol not found: _uv_default_loop
[1]   Referenced from: /Users/ad/WebProjects/ng2/node_modules/.1.0.15@fsevents/lib/binding/Release/node-v51-darwin-x64/fse.node
[1]   Expected in: flat namespace
[1] 
[1] dyld: Symbol not found: _uv_default_loop
[1]   Referenced from: /Users/ad/WebProjects/ng2/node_modules/.1.0.15@fsevents/lib/binding/Release/node-v51-darwin-x64/fse.node
[1]   Expected in: flat namespace
[1] 
[0] 11:24:52 AM - Compilation complete. Watching for file changes.

package.json

{
  "name": "ng2",
  "version": "1.0.0",
  "scripts": {
    "start": "tsc && concurrently \"tsc -w\" \"lite-server\" ",
    "lite": "lite-server",
    "tsc": "tsc",
    "tsc:w": "tsc -w"
  },
  "licenses": [
    {
      "type": "MIT",
      "url": "https://github.com/angular/angular.io/blob/master/LICENSE"
    }
  ],
  "dependencies": {
    "@angular/common": "~2.1.2",
    "@angular/compiler": "~2.1.2",
    "@angular/core": "~2.1.2",
    "@angular/forms": "~2.1.2",
    "@angular/http": "~2.1.2",
    "@angular/platform-browser": "~2.1.2",
    "@angular/platform-browser-dynamic": "~2.1.2",
    "@angular/router": "~3.1.1",
    "@angular/upgrade": "~2.1.2",
    "angular-in-memory-web-api": "~0.1.5",
    "core-js": "^2.4.1",
    "reflect-metadata": "^0.1.8",
    "rxjs": "5.0.0-beta.12",
    "systemjs": "0.19.39",
    "zone.js": "^0.6.25",
    "angular2-cookie": "^1.2.5",
    "angular2-infinite-scroll": "^0.2.6",
    "angular2-localstorage": "^0.4.0",
    "angular2-materialize": "^6.1.1",
    "materialize-css": "^0.97.8",
    "ng2-image-lazy-load": "^2.0.9"
  },
  "devDependencies": {
    "@types/core-js": "^0.9.34",
    "@types/node": "^6.0.45",
    "concurrently": "^3.0.0",
    "lite-server": "^2.2.2",
    "typescript": "^2.0.3"
  }
}