------------------------------------------------
Jekyll 4.2.0 Please append `--trace` to the `serve` command
for any additional information or backtrace.
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/Users/parkhyewon/.rbenv/versions/3.0.0/lib/ruby/gems/3.0.0/gems/jekyll-4.2.0/lib/jekyll/commands/serve/servlet.rb:3:in `require': cannot load such file -- webrick (LoadError)
/Users/parkhyewon/.rbenv/versions/3.0.0/lib/ruby/gems/3.0.0/gems/jekyll-4.2.0/lib/jekyll/commands/serve/servlet.rb:3:in `require': cannot load such file -- webrick (LoadError)