# Problem iterating over posts **URL:** \ **Category:** Uncategorized\ **Created:** [April 29, 2024, 8:14pm UTC](https://talk.jekyllrb.com/t/problem-iterating-over-posts/9135 "2024-04-29T20:14:36Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![caolin](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/caolin/32/1261_2.png) [@caolin](https://talk.jekyllrb.com/u/caolin)\ **Post date:** [April 29, 2024, 8:14pm UTC](https://talk.jekyllrb.com/t/problem-iterating-over-posts/9135/1 "2024-04-29T20:14:36Z")
## I am attempting to loop over the posts for a site and I am getting a Liquid syntax error in code that used to work. Here is the code in question: ## layout: page title: “Programming Renaissance - Blogs” author: “Programming Renaissance generated” date: 2024-03-25 {% comment %} This page produces a block of HTML for every post recorded in Jekyll, including drafts if enabled. This provides an index to the currently available posts on this site. {% endcomment %} # Latest Posts {% for post in site.posts %} - ## {{ post.title }} if {% post.author %} - Author: {{ post.author }} {% endif%} {{ post.excerpt }} {% endfor %} and here is the output from Jekyll: (PRV) jonathan@jfgdev:/PR/website$ bundle exec jekyll serve --drafts Configuration file: /mnt/ProgrammingRenaissance/website/\_config.yml Source: /mnt/ProgrammingRenaissance/website Destination: /mnt/ProgrammingRenaissance/website/\_site Incremental build: disabled. Enable with --incremental Generating… Jekyll Feed: Generating feed for posts Liquid Exception: Liquid syntax error (line 12): Unknown tag ‘post’ in blogs.html ------------------------------------------------ Jekyll 4.3.3 Please append `--trace` to the `serve` command for any additional information or backtrace. ------------------------------------------------ /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/block.rb:38:in `unknown_tag': Liquid syntax error (line 12): Unknown tag 'post' (Liquid::SyntaxError) from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/tags/for.rb:69:in `unknown\_tag’ from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/block.rb:68:in `block in parse_body' from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/block_body.rb:32:in `parse’ from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/block.rb:58:in `parse_body' from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/tags/for.rb:60:in `parse’ from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/tag.rb:10:in `parse' from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/block_body.rb:34:in `parse’ from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/document.rb:10:in `parse' from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/document.rb:5:in `parse’ from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/template.rb:130:in `parse' from /home/jonathan/gems/gems/liquid-4.0.4/lib/liquid/template.rb:114:in `parse’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/liquid\_renderer/file.rb:13:in `block in parse' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/liquid_renderer/file.rb:70:in `measure\_time’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/liquid\_renderer/file.rb:12:in `parse' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/renderer.rb:124:in `render\_liquid’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/renderer.rb:80:in `render_document' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/renderer.rb:63:in `run’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/site.rb:572:in `render_regenerated' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/site.rb:564:in `block in render\_pages’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/site.rb:563:in `each' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/site.rb:563:in `render\_pages’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/site.rb:211:in `render' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/site.rb:80:in `process’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/command.rb:28:in `process_site' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/commands/build.rb:65:in `build’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/commands/build.rb:36:in `process' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/command.rb:91:in `block in process\_with\_graceful\_fail’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/command.rb:91:in `each' from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/command.rb:91:in `process\_with\_graceful\_fail’ from /home/jonathan/gems/gems/jekyll-4.3.3/lib/jekyll/commands/serve.rb:86:in `block (2 levels) in init_with_program' from /home/jonathan/gems/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `block in execute’ from /home/jonathan/gems/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `each' from /home/jonathan/gems/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `execute’ from /home/jonathan/gems/gems/mercenary-0.4.0/lib/mercenary/program.rb:44:in `go' from /home/jonathan/gems/gems/mercenary-0.4.0/lib/mercenary.rb:21:in `program’ from /home/jonathan/gems/gems/jekyll-4.3.3/exe/jekyll:15:in `' from /home/jonathan/gems/bin/jekyll:25:in `load’ from /home/jonathan/gems/bin/jekyll:25:in `' from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:58:in `load’ from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:58:in `kernel_load' from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/cli/exec.rb:23:in `run’ from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/cli.rb:451:in `exec' from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run’ from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command' from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch’ from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/cli.rb:34:in `dispatch' from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start’ from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/cli.rb:28:in `start' from /home/jonathan/gems/gems/bundler-2.5.6/exe/bundle:28:in `block in \’ from /home/jonathan/gems/gems/bundler-2.5.6/lib/bundler/friendly\_errors.rb:117:in `with_friendly_errors' from /home/jonathan/gems/gems/bundler-2.5.6/exe/bundle:20:in `\’ from /home/jonathan/gems/bin/bundle:25:in `load' from /home/jonathan/gems/bin/bundle:25:in `’ Here is my \_config,yml # Welcome to Jekyll! # # This config file is meant for settings that affect your whole blog, values # which you are expected to set up once and rarely edit after that. If you find # yourself editing this file very often, consider using Jekyll’s data files # feature for the data you need to update frequently. # # For technical reasons, this file is _NOT_ reloaded automatically when you use # ‘bundle exec jekyll serve’. If you change this file, please restart the server process. # # If you need help with YAML syntax, here are some quick references for you: # [Markdown & YAML cheat sheet · Web Dev Topics · Learn the Web](https://learn-the-web.algonquindesign.ca/topics/markdown-yaml-cheat-sheet/#yaml) # [https://learnxinyminutes.com/docs/yaml/](https://learnxinyminutes.com/docs/yaml/) # # Site settings # These are used to personalize your new site. If you look in the HTML files, # you will see them accessed via {{ site.title }}, {{ site.email }}, and so on. # You can create any custom variable you would like, and they will be accessible # in the templates via {{ site.myvariable }}. title: Programming Renaissance email: [jgossage@gmail.com](mailto:jgossage@gmail.com) description: \>- # this means to ignore newlines until “baseurl:” Working towards the future of software development baseurl: “” # the subpath of your site, e.g. /blog url: “” # the base hostname & protocol for your site, e.g. [http://example.com](http://example.com) twitter\_username: jonathangossage # General site settings PRS: Programming Renaissance SAS: System Amanuensis # Build settings plugins: - jekyll-feed # Exclude from processing. # The following items will not be processed, by default. # Any item listed under the `exclude:` key here will be automatically added to # the internal “default list”. # # Excluded items can be processed by explicitly listing the directories or # their entries’ file path in the `include:` list. # # exclude: # - .sass-cache/ # - .jekyll-cache/ # - gemfiles/ # - Gemfile # - Gemfile.lock # - node\_modules/ # - vendor/bundle/ # - vendor/cache/ # - vendor/gems/ # - vendor/ruby/ I am completely lost and need suggestions on what to do next. ---
**Author:** ![jengalas](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/jengalas/32/5901_2.png) [@jengalas](https://talk.jekyllrb.com/u/jengalas)\ **Post date:** [April 29, 2024, 10:28pm UTC](https://talk.jekyllrb.com/t/problem-iterating-over-posts/9135/2 "2024-04-29T22:28:25Z")
There is a typo in this line: `{{ post.title }} if {% post.author %} - Author: {{ post.author }} {% endif%}` It should instead be: `{{ post.title }} {% if post.author %} - Author: {{ post.author }} {% endif %}` (That is, move the `if` inside the `{%` .) See if that helps! ---
**Author:** ![caolin](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/caolin/32/1261_2.png) [@caolin](https://talk.jekyllrb.com/u/caolin)\ **Post date:** [April 29, 2024, 10:51pm UTC](https://talk.jekyllrb.com/t/problem-iterating-over-posts/9135/3 "2024-04-29T22:51:07Z")
That did it thanks. I looked at this for hours unsucessfully. I figured that the problem had to be somewhere else. I was lucky it was so close. ---
**Author:** ![jengalas](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/jengalas/32/5901_2.png) [@jengalas](https://talk.jekyllrb.com/u/jengalas)\ **Post date:** [April 29, 2024, 10:53pm UTC](https://talk.jekyllrb.com/t/problem-iterating-over-posts/9135/4 "2024-04-29T22:53:50Z")
I’m so glad it worked! Sometimes you just need to step away for a bit 🙂