Can not find entry modules error 404

hi today i install React native and create an app with create-react-native-app with following instruction of this page and then run npm start but i get this error :

before it i develop android app and i think the problem is not from sdk but i cant face why this error happen , also i doesn’t change source of app only create app and then run it.

Hi! Can you make sure you have a node_modules directory by running npm or yarn (whichever you normally use)?

Hi, yes i check and i have node_modules and i use npm