I am also facing problem while going to install react app, so i found the solution,
npx create-react-app shodkk
First install the npm latest version using
sudo npm install -g npm@8.4.1
So to install the node 16.x you need to go terminal and type
curl -fsSL https://deb.nodesource.com/setup_16.x | sudo -E bash -
Doing this you install the node LTS that is 16.14.o at the time of writing this post.
Try this 2-3 times, also do the
sudo apt-get update
Then Now install the package using
sudo apt-get install -y nodejs
At last this helps you remove any unwanted package, that remains after updating that is depreciated and need not be there, So use autoremove command.
sudo apt autoremove
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