one of your dependencies babel-preset-react-app

npm start를 했는데 "one of your dependencies babel-preset-react-app~" 이라는 문구가 떴다.

아래 방법으로 해결함.

npm install --save-dev @babel/plugin-proposal-private-property-in-object --legacy-peer-deps

참고: https://stackoverflow.com/questions/76435306/babel-preset-react-app-is-importing-the-babel-plugin-proposal-private-propert