webpack-dev-server could not start

[aKILLBILL]

Steps to Reproduce

Error

'webpack-dev-server' is not recognized as an internal or external command,
operable program or batch file.
'webpack-dev-server' is not recognized as an internal or external command,
operable program or batch file.

Editor Details

Version: 1.0.0
Mixer User ID: 7290346

Encrypted Editor State: {"id":"5f3a2f751df63449","password":"FgRgkrgPYR5plMGhveLUGrULGTmXzHayDkDlOxlZplg="}