Try running this:
npx clear-npx-cache
It's fixed. I do npx create-react-app@5.0.0 my-app
.
npx clear-npx-cache
worked for me.
Try npx clear-npx-cache
to clear your npx cache and then running the npx create-react-app your-app.
Additionally, it might be worth trying to force the latest version with:
npx create-react-app@latest my-app --use-npm