jekyll 3.5.0 | Error: undefined method `registers' for nil:NilClass

[jclwilson]

• I believe this to be a bug, not a question about using Jekyll.
• I updated to the latest Jekyll (or) if on GitHub Pages to the latest github-pages
• I ran jekyll doctor to check my configuration
• I am on (or have tested on) Debian/Ubuntu GNU/Linux
• I was trying to build.

My Reproduction Steps

1. I upgraded from 3.4.3 to 3.5.0.
2. I changed gems in the config file to plugins. I have installed:
   • jekyll-seo-tag
   • jekyll-redirect-from
   • jekyll-feed
   • jekyll-sitemap
3. When I ran jekyll build the build failed and gave the error:
   • jekyll 3.5.0 | Error: undefined method `registers' for nil:NilClass
4. When I ran jekyll build -t the first line gave:
   • /var/lib/gems/2.3.0/gems/jekyll-3.5.0/lib/jekyll/filters/url_filters.rb:44:in `site': undefined method `registers' for nil:NilClass (NoMethodError)
   • There are more lines, but I've omitted them here.

[ashmaroli]

@jclwilson Thanks for reporting this.
We may have resolved this already via #6163

Can you use the master branch of this repo and get back?
To use the master branch, make the following change to your Gemfile, then run bundle install

- gem "jekyll", "3.5.0"
+ gem "jekyll", :git => "https://github.com/jekyll/jekyll.git"

[DirtyF]

@jclwilson Thanks for reporting, sorry for the inconvenience. 😕

Like @ashmaroli said, using jekyll's current master branch will allow you to build without error.

You still can downgrade to 3.4.4 for now, until we release a patched version:

gem "jekyll", "3.4.4"

[jclwilson]

Hi, thanks very much, at least it's been identified. I've installed Jekyll via Ruby Gems, so I just downgraded to 3.4.4.