w3b-net-au
commented
4 years ago It looks like you are trying to download a React package with a version number that doesn't exist.
Can you show the command line you used and your package.json file? See also here:
https://stackoverflow.com/questions/55606841/how-to-update-core-js-to-core-js3-dependency
the one he gave in udemy is not updated here is the eror to the actual version of core-js@3. npm ERR! code ETARGET npm ERR! notarget No matching version found for react@~r.9.0. npm ERR! notarget In most cases you or one of your dependencies are requesting npm ERR! notarget a package version that doesn't exist.
npm ERR! A complete log of this run can be found in: PS F:\web downloads\original\rn-starter> npm install react@~r.9.0. npm ERR! code ETARGET npm ERR! notarget No matching version found for react@~r.9.0.. npm ERR! notarget In most cases you or one of your dependencies are requesting npm ERR! notarget a package version that doesn't exist.