Invalid date issue solution: Please place a note in the online troubleshooting

[cchorn]

when trying to build a jekyll site with jekyll serve I get this error:

Generating...

ERROR: YOUR SITE COULD NOT BE BUILT:

Invalid date '<%= Time.now.strftime('%Y-%m-%d %H:%M:%S %z') %>': Document 'vendor/cache/gems/jekyll-3.2.1/lib/site_template/_posts/0000-00-00-welcome-to-jekyll.markdown.erb' does not have a valid date in the YAML front matter.

SOLUTION: place the line exclude: [vendor] in _config.yml
found this on the following issue:
jekyll/jekyll#2938

[jekyllbot]

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[parkr]

Hey @cchorn! Great idea. This should be in our troubleshooting docs. Feel free to submit a PR. We mention it on our Continuous Integration docs page, but I can see how that wouldn't help if Google didn't put it right in front of you.

[cchorn]

Thanks, I've submitted a PR.
jekyll/jekyll#5271