1. run npm run build error
2. invalid reinstall node environment
3. npm run dev can execute

$ npm run build

iview-admin@1.3.1 build C:\Users\dn\Desktop\iview-admin-dev webpack --progress --hide-modules --config build/webpack.prod.config.js

clean-webpack-plugin: C:\Users\dn\Desktop\iview-admin-dev\dist* has been removed. Happy[happybabel]: Version: 4.0.1. Threads: 4 (shared pool) (node:6776) [DEP0013] DeprecationWarning: Calling an asynchronous function without callback is deprecated. internal/child_process.js:323 throw errnoException(err, "spawn"); ^

Error: spawn EBUSY at _errnoException (util.js:1022:11) at ChildProcess.spawn (internal/child_process.js:323:11) at exports.spawn (child_process.js:502:9) at exports.fork (child_process.js:103:10) at open (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\lib\HappyThread.js:45:12) at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:713:13 at async.forEachOf.async.eachOf (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:233:13) at _parallel (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:712:9) at Object.async.parallel (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:726:9) at Object.start (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\lib\HappyThreadPool.js:60:13) at launchAndConfigureThreads (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\lib\HappyPlugin.js:172:23) at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:713:13 at iterate (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:262:13) at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:274:29 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:44:16 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:718:17 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:167:37 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\lib\HappyPlugin.js:154:9 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:721:13 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:52:16 at done (C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:246:17) at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:44:16 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:718:17 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\node_modules\async\lib\async.js:167:37 at C:\Users\dn\Desktop\iview-admin-dev\node_modules\happypack\lib\WebpackUtils.js:185:16 at onResolve (C:\Users\dn\Desktop\iview-admin-dev\node_modules\enhanced-resolve\lib\Resolver.js:70:11) at innerCallback (C:\Users\dn\Desktop\iview-admin-dev\node_modules\enhanced-resolve\lib\Resolver.js:143:22) at callbackWrapper (C:\Users\dn\Desktop\iview-admin-dev\node_modules\enhanced-resolve\lib\createInnerCallback.js:10:21) at next (C:\Users\dn\Desktop\iview-admin-dev\node_modules\tapable\lib\Tapable.js:249:35) at C:\Users\dn\Desktop\iview-admin-dev\node_modules\enhanced-resolve\lib\UnsafeCachePlugin.js:39:22 npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! iview-admin@1.3.1 build: webpack --progress --hide-modules --config build/webpack.prod.config.js npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the iview-admin@1.3.1 build script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\dn\AppData\Roaming\npm-cache_logs\2018-04-27T11_43_48_949Z-debug.log