C:\Users\S'omnus>cd C:\Users\S'omnus\react-app

C:\Users\S'omnus\react-app>npm start

npm ERR! missing script: start

npm ERR! A complete log of this run can be found in:

npm ERR!? ? ?C:\Users\S'omnus\AppData\Roaming\npm-cache\_logs\2019-03-26T01_50_28_511Z-debug.log

運行npm start? ?或者? ?npm run start? 的時候一直報錯