I'm also get this problem and i'm do two step to solving it

first thing I remove eslint from my packages with this " npm uninstall eslint "

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secondly i'm going to the Packge.json file and update the this

 "eslintConfig": {
    "extends": [
      "react-app"
    ]
  }


with this 

"Config": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },

And it works

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