新安裝的Laravel，按照官方教程試圖安裝Mix，使用默認(rèn)的package.json在項(xiàng)目根目錄運(yùn)行以下命令（package.json是node的依賴文件闸氮，就像composer.json是composer的依賴文件是一個(gè)道理折晦。
npm install
按照成功，然后運(yùn)行
// Run all Mix tasks...
npm run dev
// Run all Mix tasks and minify output...
npm run production
報(bào)錯(cuò)
> node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js
module.js:442
throw err;
^
Error: Cannot find module '/Applications/XAMPP/xamppfiles/htdocs/visitor_backend/node_modules/cross-env/bin/cross-env.js'
at Function.Module._resolveFilename (module.js:440:15)
at Function.Module._load (module.js:388:25)
at Module.runMain (module.js:575:10)
at run (bootstrap_node.js:352:7)
at startup (bootstrap_node.js:144:9)
at bootstrap_node.js:467:3
npm ERR! Darwin 16.0.0
npm ERR! argv "/usr/local/Cellar/node/6.3.1/bin/node" "/usr/local/bin/npm" "run" "dev"
npm ERR! node v6.3.1
npm ERR! npm v3.10.3
npm ERR! code ELIFECYCLE
npm ERR! @ dev: `node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ dev script 'node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! /Applications/XAMPP/xamppfiles/htdocs/visitor_backend/npm-debug.log
細(xì)看發(fā)現(xiàn)是cross-env.js文件找不到了漆改，再看package.json里發(fā)現(xiàn)啟動(dòng)參數(shù)里寫的文件路徑和node_modules里面的路徑不一樣心铃，少了個(gè)\dist\文件夾路徑，加上后可跑挫剑。
