undefined method `require_relative' for main:Object (NoMethodError)

Question

When trying to update OpenSSL - I broke (seemingly) everything surrounding Ruby and Rails on my laptop. Even after uninstalling ruby and rails through gem uninstall

Answer 1

Try running bundle exec rails server instead of just rails server.

I was seeing this error because I had a conflicting version of the rails gem installed globally.

Prefixing commands with bundle exec ensures that you're using gems specified by your project's Gemfile.lock.