[Bug]: Following the instructions on the home page results in "cannot load such file -- json (LoadError)"

[KonradHoeffner]

Operating System

Archlinux 6.7.4-arch1-1

Ruby Version

ruby 3.0.6p216 (2023-03-30 revision 23a532679b) [x86_64-linux]

Jekyll Version

jekyll 4.3.3

GitHub Pages Version

No response

Expected Behavior

As written on the home page https://jekyllrb.com/ I was expecting # => Now browse to http://localhost:4000.

Current Behavior

bundle exe jekyll serve results in bundler: failed to load command: jekyll (/home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll)

Relevant log output

bundler: failed to load command: jekyll (/home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll)
/home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/lib/jekyll.rb:29:in `require': cannot load such file -- json (LoadError)
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/lib/jekyll.rb:29:in `<top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/exe/jekyll:8:in `require'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/exe/jekyll:8:in `<top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll:25:in `load'
	from /home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll:25:in `<top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:58:in `load'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:58:in `kernel_load'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:23:in `run'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli.rb:451:in `exec'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli.rb:34:in `dispatch'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli.rb:28:in `start'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/exe/bundle:28:in `block in <top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/exe/bundle:20:in `<top (required)>'
	from /usr/bin/bundle:25:in `load'
	from /usr/bin/bundle:25:in `<main>'

Code Sample

$ pacman -S ruby
...(pacman output hidden for brevity)
$ gem install bundler jekyll
Successfully installed bundler-2.5.6
Parsing documentation for bundler-2.5.6
Done installing documentation for bundler after 0 seconds
Successfully installed jekyll-4.3.3
Parsing documentation for jekyll-4.3.3
Done installing documentation for jekyll after 0 seconds
2 gems installed
$ jekyll new x
Running bundle install in /tmp/x... 
  Bundler: Bundle complete! 7 Gemfile dependencies, 33 gems now installed.
  Bundler: Use `bundle info [gemname]` to see where a bundled gem is installed.
New jekyll site installed in /tmp/x. 
$ cd x
x$ bundle exec jekyll serve
bundler: failed to load command: jekyll (/home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll)
/home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/lib/jekyll.rb:29:in `require': cannot load such file -- json (LoadError)
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/lib/jekyll.rb:29:in `<top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/exe/jekyll:8:in `require'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/jekyll-4.3.3/exe/jekyll:8:in `<top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll:25:in `load'
	from /home/konrad/.local/share/gem/ruby/3.0.0/bin/jekyll:25:in `<top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:58:in `load'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:58:in `kernel_load'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:23:in `run'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli.rb:451:in `exec'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli.rb:34:in `dispatch'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/cli.rb:28:in `start'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/exe/bundle:28:in `block in <top (required)>'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
	from /home/konrad/.local/share/gem/ruby/3.0.0/gems/bundler-2.5.6/exe/bundle:20:in `<top (required)>'
	from /usr/bin/bundle:25:in `load'
	from /usr/bin/bundle:25:in `<main>'

[BifbofII]

I am seeing this issue as well (also on archlinux). As a workaround, adding gem "json" to my Gemfile worked, but I don't understand what's causing this, as I have the arch extra/ruby-json package installed.

[mattr-]

json is meant to be a default gem that is installed with Ruby. Arch breaks this and doesn't install json as a default gem. Please file an issue with the Arch folks. This is not something we'll fix as part of the Jekyll project.

[vzx7]

gem "json" in project's Gemfile for Arch Linux work for me! Cool! Thanks!