Logging at level: debug Configuration file: /github/workspace/./_config.yml GitHub Pages: github-pages v230 GitHub Pages: jekyll v3.9.5 Theme: jekyll-theme-primer Theme source: /usr/local/bundle/gems/jekyll-theme-primer-0.6.0 Requiring: jekyll-github-metadata Requiring: jekyll-seo-tag Requiring: jekyll-paginate Requiring: jekyll-sitemap Requiring: jekyll-gist Requiring: jekyll-feed Requiring: jekyll-redirect-from Requiring: jekyll-coffeescript Requiring: jekyll-commonmark-ghpages Requiring: jekyll-github-metadata Requiring: jekyll-relative-links Requiring: jekyll-optional-front-matter Requiring: jekyll-readme-index Requiring: jekyll-default-layout Requiring: jekyll-titles-from-headings GitHub Metadata: Initializing... Source: /github/workspace/. Destination: /github/workspace/./_site Incremental build: disabled. Enable with --incremental Generating... EntryFilter: excluded /README.md EntryFilter: excluded /CHANGELOG.md EntryFilter: excluded /package.json EntryFilter: excluded /Gemfile EntryFilter: excluded /LICENSE EntryFilter: excluded /assets/js/vendor EntryFilter: excluded /assets/js/plugins Generating: JekyllRedirectFrom::Generator finished in 0.022864806 seconds. Generating: JekyllOptionalFrontMatter::Generator finished in 0.000203249 seconds. Generating: JekyllReadmeIndex::Generator finished in 0.000383784 seconds. Generating: Jekyll::Paginate::Pagination finished in 4.739e-06 seconds. Generating: Jekyll::JekyllSitemap finished in 0.000299848 seconds. Jekyll Feed: Generating feed for posts Generating: JekyllFeed::Generator finished in 0.000672202 seconds. Generating: JekyllRelativeLinks::Generator finished in 0.003916425 seconds. Generating: JekyllDefaultLayout::Generator finished in 0.00032242 seconds. Requiring: kramdown-parser-gfm Generating: JekyllTitlesFromHeadings::Generator finished in 0.00771547 seconds. Rendering: _pages/404.md Pre-Render Hooks: _pages/404.md Rendering Liquid: _pages/404.md Rendering Markup: _pages/404.md Rendering Layout: _pages/404.md Layout source: site Rendering: _pages/404.md/#excerpt Pre-Render Hooks: _pages/404.md/#excerpt github-pages 230 | Error: undefined method `yaml_file?' for #<Jekyll::Page @name="404.md">