Nice to meet you.
Please check your node version. After setup your node.exe.
And set the below contents to your package.json file.
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
Then please execute the command line. "npm start"
Best regards.
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