I was wondering what repo is responsible for writing this error message, because I'd like to make a PR to modify it. I cloned the create-react-app and babel repos, but vscode's find function didn't return a result for the error message.
The error message is this:
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.
In case anyone somehow ends up here, I found the repo. It is from the babel org, but not in their main repo.