라라벨 5.4 gulp 또는 npm run watch 해결 방법

라라벨 5.4에서는 gulp 명령어가 npm run watch로 바뀌어서 프런트 엔드를 빌드해야 한다.

그런데 npm run watch를 하면 다음과 같은 에러가 뜬다.

> 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:471
throw err;
^

Error: Cannot find module ‘C:\Users\hnefo\sites\collection\node_modules\cross-en v\bin\cross-env.js’
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:393:7)
at startup (bootstrap_node.js:150:9)
at bootstrap_node.js:508:3

npm ERR! Windows_NT 10.0.14393
npm ERR! argv “C:\\Program Files\\nodejs\\node.exe” “C:\\Program Files\\nodejs\\ node_modules\\npm\\bin\\npm-cli.js” “run” “dev”
npm ERR! node v6.10.1
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! @ dev: `node node_modules/cross-env/bin/cross-env.js NODE_ENV=developme nt node_modules/webpack/bin/webpack.js –progress –hide-modules –config=node_m odules/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.j s NODE_ENV=development node_modules/webpack/bin/webpack.js –progress –hide-mod ules –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 n ode_modules/webpack/bin/webpack.js –progress –hide-modules –config=node_modul es/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! C:\Users\hnefo\sites\collection\npm-debug.log

이는 package.json의 watch의 경로가 잘못돼서 그런 것이다. 

“cross-env/bin/” 대신에 “cross-env/dist/bin”를 사용해 주자.

라라벨 팀에서 개선해 주지 않을까 싶다.

참고 : https://github.com/JeffreyWay/laravel-mix/issues/521