'Kernel.require': cannot load such file Error

[jaiarora0011]

I was updating my website after a while and did the following:

docker compose pull
docker compose build
docker compose up

I ran into the following error:

jekyll-1  | You can add observer to your Gemfile or gemspec to silence this warning.
jekyll-1  | /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require': cannot load such file -- observer (LoadError)
jekyll-1  |     from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
jekyll-1  |     from /usr/local/bundle/gems/citeproc-ruby-1.1.14/lib/citeproc/ruby.rb:1:in '<top (required)>'
jekyll-1  |     from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
jekyll-1  |     from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
jekyll-1  |     from /usr/local/bundle/gems/jekyll-scholar-7.1.3/lib/jekyll/scholar.rb:7:in '<top (required)>'
jekyll-1  |     from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
jekyll-1  |     from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
jekyll-1  |     from /usr/local/bundle/gems/jekyll-scholar-7.1.3/lib/jekyll-scholar.rb:1:in '<top (required)>'
jekyll-1  |     from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:37:in 'Kernel#require'
jekyll-1  |     from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:37:in 'Kernel#require'
jekyll-1  |     from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel.replace_require'
jekyll-1  |     from /usr/local/bundle/gems/bundler-2.6.2/lib/bundler/runtime.rb:65:in 'block (2 levels) in Bundler::Runtime#require'
jekyll-1  |     from /usr/local/bundle/gems/bundler-2.6.2/lib/bundler/runtime.rb:60:in 'Array#each'
jekyll-1  |     from /usr/local/bundle/gems/bundler-2.6.2/lib/bundler/runtime.rb:60:in 'block in Bundler::Runtime#require'
jekyll-1  |     from /usr/local/bundle/gems/bundler-2.6.2/lib/bundler/runtime.rb:52:in 'Array#each'
jekyll-1  |     from /usr/local/bundle/gems/bundler-2.6.2/lib/bundler/runtime.rb:52:in 'Bundler::Runtime#require'
jekyll-1  |     from /usr/local/bundle/gems/bundler-2.6.2/lib/bundler.rb:216:in 'Bundler.require'
jekyll-1  |     from /usr/local/bundle/gems/jekyll-4.3.4/lib/jekyll/plugin_manager.rb:53:in 'Jekyll::PluginManager.require_from_bundler'
jekyll-1  |     from /usr/local/bundle/gems/jekyll-4.3.4/exe/jekyll:11:in '<top (required)>'
jekyll-1  |     from /usr/local/bundle/bin/jekyll:25:in 'Kernel#load'
jekyll-1  |     from /usr/local/bundle/bin/jekyll:25:in '<main>'

My platform is WSL2.0. I'll be happy to provide any other information as needed.

[george-gca]

Not sure this is actually the error, but in case it is, check if you are running the latest version of our code. We added observer to our Gemfile:

al-folio/Gemfile

Line 33 in f233233

gem 'observer' # used by jekyll-scholar

If you are not, you should add this to your Gemfile and recreate your Gemfile.lock, or simply replace these 2 files in your repository with our versions.

[jaiarora0011]

The latter solution did not work, but the former worked. Thanks!