How do I downgrade react-scripts 5.0.1 to 4.0.3

Question

I'm having the issue that's faced in this question: Invalid options object. Dev Server has been initialized using an options object that does not match the API schema

One of the solutions is to downgrade react-scripts to 4.0.3 and I'm not sure how to do that. Could someone help me?

Answer 1

Could always delete your node_modules directory and change the version in your package.json under dependencies:

"dependencies": {
  "react-scripts" :"5.0.1",
}

then run an install. It's better to do a terminal approach when looking to change versions of a package, like:

NPM

uninstall:

npm uninstall react-scripts

install:

npm install --save [email protected]

Yarn

since Yarn is the preferred for Create React App per memory:

uninstall:

yarn remove react-scripts

install:

yarn add [email protected]