Laravel elixir Sass error

我在我最新的家園機器上安裝laravel elixir，在laravel 5.3上工作，我按照確切的文檔安裝laravel elixir，但它沒有奏效，它拋出了關於sass文件的錯誤。這裏是快照Laravel elixir Sass error

我該如何解決這個問題。測試版本是 - > ```

[19:33:15] Using gulpfile ~/sites/dev.friendsforever/server/gulpfile.js 
[19:33:15] Starting 'all'... 
[19:33:15] Starting 'sass'... 
[19:33:16] 'sass' errored after 169 ms 
[19:33:16] Error: ENOENT: no such file or directory, scandir '/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/vendor' 
    at Error (native) 
    at Object.fs.readdirSync (fs.js:856:18) 
    at Object.getInstalledBinaries (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/extensions.js:119:13) 
    at foundBinariesList (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/errors.js:20:15) 
    at foundBinaries (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/errors.js:15:5) 
    at Object.module.exports.missingBinary (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/errors.js:45:5) 
    at Object.<anonymous> (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/index.js:15:28) 
    at Module._compile (module.js:413:34) 
    at Object.Module._extensions..js (module.js:422:10) 
    at Module.load (module.js:357:32) 
[19:33:16] 'all' errored after 179 ms 
[19:33:16] Error in plugin 'run-sequence(sass)' 
Message: 
    ENOENT: no such file or directory, scandir '/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/vendor' 
Details: 
    errno: -2 
    code: ENOENT 
    syscall: scandir 
    path: /home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/vendor 
Stack: 
Error: ENOENT: no such file or directory, scandir '/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/vendor' 
    at Error (native) 
    at Object.fs.readdirSync (fs.js:856:18) 
    at Object.getInstalledBinaries (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/extensions.js:119:13) 
    at foundBinariesList (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/errors.js:20:15) 
    at foundBinaries (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/errors.js:15:5) 
    at Object.module.exports.missingBinary (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/errors.js:45:5) 
    at Object.<anonymous> (/home/vagrant/sites/dev.friendsforever/server/node_modules/node-sass/lib/index.js:15:28) 
    at Module._compile (module.js:413:34) 
    at Object.Module._extensions..js (module.js:422:10) 
    at Module.load (module.js:357:32)

``` 圖像版本是 - >