failed run dev , how to fix this

[webstermobile]

NODE_ENV=dev webpack-dev-server --devtool eval --progress --colors --hot --con tent-base build

'NODE_ENV' ▒▒▒▒▒ڲ▒▒▒▒ⲿ▒▒▒Ҳ▒▒▒ǿ▒▒▒▒еij▒▒▒
▒▒▒▒▒▒▒▒▒ļ▒▒▒

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "D:\soft\nodejs\node.exe" "C:\Users\Administrator\AppData\R oaming\npm\node_modules\cnpm\node_modules\npm\bin\npm-cli.js" "--userconf ig=C:\Users\Administrator\.cnpmrc" "--disturl=https://npm.taobao.org/mirrors/ node" "--registry=https://registry.npm.taobao.org" "run" "dev"
npm ERR! node v6.9.1
npm ERR! npm v3.10.9
npm ERR! code ELIFECYCLE
npm ERR! [email protected] dev: NODE_ENV=dev webpack-dev-server --devtoo l eval --progress --colors --hot --content-base build
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] dev script 'NODE_ENV=dev webpack -dev-server --devtool eval --progress --colors --hot --content-base build'.
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 zhihudaily-react-2 pa ckage,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! NODE_ENV=dev webpack-dev-server --devtool eval --progress --colors --hot --content-base build