i got this errors. can anybody help me?
PS W:\portal54> npm run dev
portal54@1.0.0 dev W:\portal54 node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hid e-modules --config=node_modules/laravel-mix/setup/webpack.config.js
module.js:472 throw err; ^
Error: Cannot find module 'W:\portal54\node_modules\laravel-mix\setup\webpack.config.js' at Function.Module._resolveFilename (module.js:470:15) at Function.Module._load (module.js:418:25) at Module.require (module.js:498:17) at require (internal/module.js:20:19) at requireConfig (W:\portal54\node_modules\webpack\bin\convert-argv.js:96:18) at W:\portal54\node_modules\webpack\bin\convert-argv.js:109:17 at Array.forEach (native) at module.exports (W:\portal54\node_modules\webpack\bin\convert-argv.js:107:15) at Object. (W:\portal54\node_modules\webpack\bin\webpack.js:153:40) at Module._compile (module.js:571:32)
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 v7.4.0
npm ERR! npm v4.0.5
npm ERR! code ELIFECYCLE
npm ERR! portal54@1.0.0 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 portal54@1.0.0 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 portal54 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 --pro
gress --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 portal54
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls portal54
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request: npm ERR! W:\portal54\npm-debug.log