The MacOS Catalina update for some reason removed some necessary libs that usually are installed to development purposes.
I figured out this issue when working in a Ruby project, more specifically with Nokogiri gem.
The issue was pretty easy to solve after find what is the problem.
I had to reinstall the
xcode-select tool. Simple as that I managed to fix my issue.
I heard other people having issues with other gems and other projects. Most of them are having issues because of something that was uninstalled in the update.
The advice is check the requirements, possibly you had something removed.