Unable to build local preview

[Stanislaw-bnk]

I've tried to build and launch the preview server but in the end was not able to do it. Got a lot of errors along the way, ex.:

[abc@3M11 pcengines.github.io]$ bundle exec jekyll serve
Calling `DidYouMean::SPELL_CHECKERS.merge!(error_name => spell_checker)' has been deprecated. Please call `DidYouMean.correct_error(error_name, spell_checker)' instead.
bundler: command not found: jekyll
Install missing gem executables with `bundle install`

System is Fedora.