The react-scripts package provided by Create React App requires a dependency:
"webpack": "4.29.6"
Don't try to install it manually: your package manager does it automatically.
However, a different version of webpack was detected higher up in the tree:
webpack (version: 4.41.5)
If you would prefer to ignore this check, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.