Why does jekyll serve fail with pagination? - ruby

Question

I want to enable pagination on my Jekyll site, but this happens:
jekyll serve
WARN: Unresolved specs during Gem::Specification.reset:
eventmachine (>= 0.12.9)
listen (~> 3.0)
rouge (< 4, >= 1.7)
rb-fsevent (>= 0.9.4, ~> 0.9)
rb-inotify (>= 0.9.7, ~> 0.9)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
Configuration file: /Users/sean/dev/sh78.github.io/_config.yml
Source: /Users/sean/dev/sh78.github.io
Destination: /Users/sean/dev/sh78.github.io/_site
Incremental build: disabled. Enable with --incremental
Generating...
Liquid Exception: Liquid syntax error (line 1): Unknown tag 'paginator' in log/index.html
jekyll 3.8.3 | Error: Liquid syntax error (line 1): Unknown tag 'paginator'
I think I followed the docs to a tee:
In _config.yml:
plugins:
- jekyll-feed
- jekyll-seo-tag
- jekyll-paginate
paginate: 2
paginate_path: "/log/page:num/"
The index.html file is in place as defined in paginate_path
ls
404.html README.md _posts/ favicon.ico
Gemfile _config.yml _sass/ favicon.png
Gemfile.lock _includes/ _site/ index.md
LICENSE.txt _layouts/ assets/ log/
ls log/
index.html
Contents of log/index.html, where I'm trying to at least print the paginator.posts object. There is no permalink in the front matter per the docs:
---
layout: log
title: log
icon: pencil-alt
description: >
Sean's blog. Articles about software and other things.
---
{% paginator.posts %}
Here is the parent log (blog) template:
---
layout: default
---
<div class="blog">
{{ content }}
{%- if site.posts.size > 0 -%}
{% comment %} *truncated* (it works fine) {% endcomment %}
I have jekyll-paginate in my Gemfile:
# If you have any plugins, put them here!
group :jekyll_plugins do
gem "jekyll-feed", "~> 0.6"
gem "jekyll-paginate"
end
And ran bundle install successfully:
bundle install
Using public_suffix 3.0.2
Using addressable 2.5.2
Using bundler 1.16.2
Using colorator 1.1.0
Using concurrent-ruby 1.0.5
Using eventmachine 1.2.7
Using http_parser.rb 0.6.0
Using em-websocket 0.5.1
Using ffi 1.9.25
Using forwardable-extended 2.6.0
Using i18n 0.9.5
Using rb-fsevent 0.10.3
Using rb-inotify 0.9.10
Using sass-listen 4.0.0
Using sass 3.5.6
Using jekyll-sass-converter 1.5.2
Using ruby_dep 1.5.0
Using listen 3.1.5
Using jekyll-watch 2.0.0
Using kramdown 1.17.0
Using liquid 4.0.0
Using mercenary 0.3.6
Using pathutil 0.16.1
Using rouge 3.1.1
Using safe_yaml 1.0.4
Using jekyll 3.8.3
Using jekyll-feed 0.9.3
Using jekyll-paginate 1.1.0
Using jekyll-seo-tag 2.5.0
Using minimaterialize 1.1.2
Bundle complete! 5 Gemfile dependencies, 30 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
I uninstalled all versions of jekyll except the one in use, like this answer.
I also tried like gem cleanup && bundle exec jekyll serve like in this answer, and got the same exception listed above.
Environment:
jekyll -v
WARN: Unresolved specs during Gem::Specification.reset:
eventmachine (>= 0.12.9)
listen (~> 3.0)
rouge (< 4, >= 1.7)
rb-fsevent (>= 0.9.4, ~> 0.9)
rb-inotify (>= 0.9.7, ~> 0.9)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
jekyll 3.8.3
ruby -v
ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]
gem -v
2.5.1
What am I missing?

Answer 1

Well, yeah, I made an oops. I wrote paginator as a liquid tag, aka command (like if) instead of just calling a variable/object.
Changing {% paginator %} to {{ paginator }} is the solution.