[thatsmehere@laptop jekyllsite]$ bundle exec jekyll serve
Configuration file: /home/thatsmehere/jekyllsite/_config.yml
            Source: /home/thatsmehere/jekyllsite
       Destination: /home/thatsmehere/jekyllsite/_site
 Incremental build: disabled. Enable with --incremental
      Generating...
                    ------------------------------------------------
      Jekyll 4.2.2   Please append `--trace` to the `serve` command
                     for any additional information or backtrace.
                    ------------------------------------------------
/home/thatsmehere/jekyllsite/_plugins/galleries.rb:143:in `block in files_to_resize': undefined method `exists?' for File:Class (NoMethodError)

                    if !File.exists?(thumbname)
                            ^^^^^^^^
Did you mean?  exist?
    from /home/thatsmehere/jekyllsite/_plugins/galleries.rb:137:in `each'
    from /home/thatsmehere/jekyllsite/_plugins/galleries.rb:137:in `files_to_resize'
    from /home/thatsmehere/jekyllsite/_plugins/galleries.rb:128:in `generate'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/site.rb:193:in `block in generate'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/site.rb:191:in `each'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/site.rb:191:in `generate'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/site.rb:79:in `process'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/command.rb:28:in `process_site'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/commands/build.rb:65:in `build'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/commands/build.rb:36:in `process'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/command.rb:91:in `block in process_with_graceful_fail'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/command.rb:91:in `each'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/command.rb:91:in `process_with_graceful_fail'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/lib/jekyll/commands/serve.rb:86:in `block (2 levels) in init_with_program'
    from /home/thatsmehere/gems/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `block in execute'
    from /home/thatsmehere/gems/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `each'
    from /home/thatsmehere/gems/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `execute'
    from /home/thatsmehere/gems/gems/mercenary-0.4.0/lib/mercenary/program.rb:44:in `go'
    from /home/thatsmehere/gems/gems/mercenary-0.4.0/lib/mercenary.rb:21:in `program'
    from /home/thatsmehere/gems/gems/jekyll-4.2.2/exe/jekyll:15:in `<top (required)>'
    from /home/thatsmehere/gems/bin/jekyll:25:in `load'
    from /home/thatsmehere/gems/bin/jekyll:25:in `<top (required)>'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/cli/exec.rb:58:in `load'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/cli/exec.rb:58:in `kernel_load'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/cli/exec.rb:23:in `run'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/cli.rb:484:in `exec'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/cli.rb:31:in `dispatch'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/cli.rb:25:in `start'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/exe/bundle:48:in `block in <top (required)>'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/lib/bundler/friendly_errors.rb:103:in `with_friendly_errors'
    from /home/thatsmehere/gems/gems/bundler-2.3.7/exe/bundle:36:in `<top (required)>'
    from /home/thatsmehere/gems/bin/bundle:25:in `load'
    from /home/thatsmehere/gems/bin/bundle:25:in `<main>'