I want to publish my nodeJS build folder or ftp
so in Cmd I write npm run build but it give that error 
In webpack or package.json I set Node_ENV to production
 18 error react-seed@0.0.13 build: `NODE_ENV=production npm run webpack`
    18 error Exit status 1
    19 error Failed at the react-seed@0.0.13 build script
   'NODE_ENV=production npm run webpack'.
    19 error This is most likely a problem with the react-seed package,
    19 error not with npm itself.
    19 error Tell the author that this fails on your system:
    19 error     NODE_ENV=production npm run webpack
How can I publish my project to any folder or ftp?