E:\vscode\node>npm run build

> [email protected] build E:\vscode\node

> cross-env NODE_ENV=production webpack --config webpack.config.js

'cross-env' 不是內部或外部命令，也不是可運行的程序

或批處理文件。

npm ERR! code ELIFECYCLE

npm ERR! errno 1

npm ERR! [email protected] build: `cross-env NODE_ENV=production webpack --config webpack.config.js`

npm ERR! Exit status 1

npm ERR!

npm ERR! Failed at the [email protected] 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\Administrator\AppData\Roaming\npm-cache\_logs\2019-05-20T02_08_46_470Z-debug.log