pages build and deployment failed: "Liquid syntax error (line 5): Unknown tag 'bibliography'"

[XinhuiLi]

Acknowledge the following

• I carefully read and followed the Getting Started guide.
• I read through FAQ and searched through the past issues, none of which addressed my issue.
• The issue I am raising is a potential bug in al-folio and not just a usage question.
  [For usage questions, please post in the Discussions instead of raising an issue.]

Describe the bug
Same as #513, I keep getting this error in GitHub Actions pages build and deployment, though it works locally: https://github.com/XinhuiLi/xinhuili.github.io/runs/4829656563?check_suite_focus=true

Liquid Exception: Liquid syntax error (line 5): Unknown tag 'bibliography' in _pages/publications.md
/usr/local/bundle/gems/liquid-4.0.3/lib/liquid/block.rb:38:in `unknown_tag': Liquid syntax error (line 5): Unknown tag 'bibliography' (Liquid::SyntaxError)

github-pages 223 | Error:  Liquid syntax error (line 5): Unknown tag 'bibliography'

The error doesn't go away when I re-run the workflow.

_pages/publications.md is shown as below:

---
layout: page
permalink: /publications/
title: publications
description: 
years: [2021, 2020, 2019]
nav: true
---

<div class="publications">

{% for y in page.years %}
  <h2 class="year">{{y}}</h2>
  {% bibliography -f papers -q @*[year={{y}}]* %}
{% endfor %}

</div>

Expected behavior
The page can be built without errors.

System (please complete the following information):

• OS: iOS
• Browser (and its version): chrome

[sarsid]

Finally, in the Settings of your repository, in the Pages section, set the branch to gh-pages (NOT to master). For more details, see Configuring a publishing source for your GitHub Pages site.

This step (from automatic deployment instructions) fixed this exact error for me.

[XinhuiLi]

That did the trick!! Thank you so much @sarsid

[vanshaj18]

setting source to gh-pages also does the trick for the build error "Liquid Exception: Liquid syntax error (line 5): Unknown tag 'twitter' in /github/workspace/_posts/2020-09-28-twitter.md"

OS-ubuntu 20.04
browser- brave

[ewingard]

Hi, I'm also having this error now but I have my source set to deploy in github-pages?