Logging at level: debug Configuration file: /github/workspace/./_config.yml GitHub Pages: github-pages v229 GitHub Pages: jekyll v3.9.4 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 /package.json EntryFilter: excluded /CHANGELOG.md EntryFilter: excluded /LICENSE EntryFilter: excluded /Gemfile EntryFilter: excluded /README.md EntryFilter: excluded /assets/js/plugins EntryFilter: excluded /assets/js/vendor Generating: JekyllRedirectFrom::Generator finished in 0.018801981 seconds. Generating: JekyllOptionalFrontMatter::Generator finished in 0.000784553 seconds. Generating: JekyllReadmeIndex::Generator finished in 5.1857e-05 seconds. Generating: Jekyll::Paginate::Pagination finished in 3.827e-06 seconds. Generating: Jekyll::JekyllSitemap finished in 0.000472862 seconds. Jekyll Feed: Generating feed for posts Generating: JekyllFeed::Generator finished in 0.000651475 seconds. github-pages 229 | Error: undefined method `excerpt_separator' for #<Jekyll::Page @name="404.md">