Start script missing error when running npm start FIXED | React Error

Start script missing error when running npm start FIXED | React Error
Error Description:
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I'm receiving this error when trying to debug my node application using the npm start command.

Error:
npm ERR! Windows_NT 6.3.9600
npm ERR! node v0.12.7
npm ERR! npm v2.11.3

npm ERR! missing script: start
npm ERR!
npm ERR! If you need help, you may report this error at:...
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So, here we have tried to solve this error.

Code:
npx create-react-app [your app name]

Hey, sorry for one misinformation. I did not change my directory when I show you the error. but if I changed the directory, it may also show that error. here is a StackOverflow question and answer of that error. Have a look!