Npm安装角度，未满足的依赖项

Question

我真的很困惑为什么会发生这种情况，任何人都能解释一下吗？

npm -v给我版本2.13.5

当我跑

时会发生这种情况

npm install angular


npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/browserify requires glob@'^4.0.5' but will load
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/glob,
npm WARN unmet dependency which is version 5.0.14
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-load-plugins requires findup-sync@'^0.2.1' but will load
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/findup-sync,
npm WARN unmet dependency which is version 0.1.2
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-phpspec requires gulp-util@'~2.2.14' but will load
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-util,
npm WARN unmet dependency which is version 3.0.6
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-phpunit requires gulp-util@'~2.2.14' but will load
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-util,
npm WARN unmet dependency which is version 3.0.6
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-rev-replace requires gulp-util@'~2.2.14' but will load
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/laravel-elixir/node_modules/gulp-util,
npm WARN unmet dependency which is version 3.0.6
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/gulp/node_modules/vinyl-fs/node_modules/glob-stream requires through2@'^0.6.1' but will load
npm WARN unmet dependency /Users/arthurrafal/Desktop/bookSwapon/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2,
npm WARN unmet dependency which is version 2.0.0
angular@1.4.4 ../node_modules/angular

的package.json

{
  "private": true,
  "devDependencies": {
    "gulp": "^3.8.8"
  },
  "dependencies": {
    "laravel-elixir": "^3.0.0",
    "bootstrap-sass": "^3.0.0"
  }
}