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At first I could use (not bundle exec) jekyll serve without any problem. Then I started creating a yaml data file (still trying to make it work) and, don't know how, I "lost" the Gemfile and the Gemfile.lock. When trying to run jekyll serve (with and without bundle exec) I got an error as result. Then I added again the Gemfile and the Gemfile.lock and got this result: 

bundle exec jekyll serve
Configuration file: none
            Source: /Users/..../Documents/.../My_website/...
       Destination: /Users/..../Documents/.../My_website/.../_site
 Incremental build: disabled. Enable with --incremental
      Generating... 
/Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/convertible.rb:41: warning: Using the last argument as keyword parameters is deprecated
/Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/convertible.rb:41: warning: Using the last argument as keyword parameters is deprecated
/Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/convertible.rb:41: warning: Using the last argument as keyword parameters is deprecated
                    ------------------------------------------------
      Jekyll 4.0.0   Please append `--trace` to the `serve` command 
                     for any additional information or backtrace. 
                    ------------------------------------------------
Traceback (most recent call last):
        29: from /Users/..../.rvm/gems/ruby-2.7.0/bin/ruby_executable_hooks:24:in `<main>'
        28: from /Users/..../.rvm/gems/ruby-2.7.0/bin/ruby_executable_hooks:24:in `eval'
        27: from /Users/..../.rvm/gems/ruby-2.7.0/bin/jekyll:23:in `<main>'
        26: from /Users/..../.rvm/gems/ruby-2.7.0/bin/jekyll:23:in `load'
        25: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/exe/jekyll:15:in `<top (required)>'
        24: from /Users/..../.rvm/gems/ruby-2.7.0/gems/mercenary-0.3.6/lib/mercenary.rb:19:in `program'
        23: from /Users/..../.rvm/gems/ruby-2.7.0/gems/mercenary-0.3.6/lib/mercenary/program.rb:42:in `go'
        22: from /Users/..../.rvm/gems/ruby-2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `execute'
        21: from /Users/..../.rvm/gems/ruby-2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `each'
        20: from /Users/..../.rvm/gems/ruby-2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `block in execute'
        19: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/commands/serve.rb:86:in `block (2 levels) in init_with_program'
        18: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/command.rb:89:in `process_with_graceful_fail'
        17: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/command.rb:89:in `each'
        16: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/command.rb:89:in `block in process_with_graceful_fail'
        15: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/commands/build.rb:36:in `process'
        14: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/commands/build.rb:65:in `build'
        13: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/command.rb:28:in `process_site'
        12: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/site.rb:74:in `process'
        11: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/site.rb:174:in `read'
        10: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/reader.rb:19:in `read'
         9: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/readers/data_reader.rb:20:in `read'
         8: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/readers/data_reader.rb:38:in `read_data_to'
         7: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/readers/data_reader.rb:38:in `each'
         6: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/readers/data_reader.rb:46:in `block in read_data_to'
         5: from /Users/..../.rvm/gems/ruby-2.7.0/gems/jekyll-4.0.0/lib/jekyll/readers/data_reader.rb:66:in `read_data_file'
         4: from /Users/..../.rvm/gems/ruby-2.7.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:157:in `load_file'
         3: from /Users/..../.rvm/gems/ruby-2.7.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:157:in `open'
         2: from /Users/..../.rvm/gems/ruby-2.7.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:157:in `block in load_file'
         1: from /Users/..../.rvm/gems/ruby-2.7.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:143:in `load'
/Users/..../.rvm/gems/ruby-2.7.0/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:143:in `parse': (/Users/..../Documents/_VITO/My_website/website2020/_data/audio.yaml): mapping values are
 not allowed in this context at line 8 column 11 (Psych::SyntaxError)

The project has a config.yaml and both Gemfile and Gemfile.lock. I don't know what Configuration file: none would mean.

That's what my Gemfile looks like:

# frozen_string_literal: true

source "https://rubygems.org"

git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }

# gem "rails"

gem "jekyll", "~> 4.0"

I am sure I made pretty much a mess (first timer with Jekyll) and hope you can help me.

Vito
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  • Is it possible to see your `_data/audio.yaml` file, which is causing the error. – David Jacquel Jan 31 '20 at 09:16
  • I deleted the content in the `_data/audio.yaml` file and everything works again. Thanks! It was a pretty complex yaml structure and obviously I couldn't make it work. I'll post a new question about that specific topic. Thanks again! – Vito Jan 31 '20 at 13:47

2 Answers2

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bundle add webrick this worked for me on windows 10

Ogada Moses
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When making changes to the file (index.html), add a blank front matter (two triple-dashed lines at the start of a file ), it will work.

You don't need to see Gemfile at the moment.

Hanif Sajid
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