ProcessError: fatal: a branch named 'gh-pages' already exists.md

[lenn-dev]

rm -rf node_modules/.cache/gh-pages
I just manually delete the gh-pages folder from node_modules/.cache from my editor (VSCode)

[eslint]
src/routes/Detail.js
Line 22:7: React Hook useEffect has a missing dependency: 'getMovie'. Either include it or remove the dependency array react-hooks/exhaustive-deps

One of your dependencies, babel-preset-react-app, is importing the
"@babel/plugin-proposal-private-property-in-object" package without
declaring it in its dependencies. This is currently working because
"@babel/plugin-proposal-private-property-in-object" is already in your
node_modules folder for unrelated reasons, but it may break at any time.

babel-preset-react-app is part of the create-react-app project, which
is not maintianed anymore. It is thus unlikely that this bug will
ever be fixed. Add "@babel/plugin-proposal-private-property-in-object" to
your devDependencies to work around this error. This will make this message
go away.