Sometimes, GitHub Pages will not attempt to build your site after you push changes to your site's publishing source.
- You're pushing with a deploy key. If you want to automate pushes to your site's repository, you can set up a machine user instead. For more information, see "Managing deploy keys."
- You're using a CI service that isn't configured to build your publishing source. For example, Travis CI won't build the
gh-pagesbranch unless you add the branch to a safe list. For more information, see "Customizing the build" on Travis CI, or your CI service's documentation.
Note: It can take up to 20 minutes for changes to your site to publish after you push the changes to GitHub AE.
If Jekyll does attempt to build your site and encounters an error, you will receive a build error message. There are two main types of Jekyll build error messages.
- A "Page build warning" message means your build completed successfully, but you may need to make changes to prevent future problems.
- A "Page build failed" message means your build failed to complete. If Jekyll is able to detect a reason for the failure, you'll see a descriptive error message.
For more information about troubleshooting build errors, see "Troubleshooting Jekyll build errors for GitHub Pages sites."
You can see build failures (but not build warnings) for your site on GitHub AE in the Settings tab of your site's repository.
We recommend testing your site locally, which allows you to see build error messages on the command line, and addressing any build failures before pushing changes to GitHub AE. For more information, see "Testing your GitHub Pages site locally with Jekyll."
When you create a pull request to update your publishing source on GitHub AE, you can see build error messages on the Checks tab of the pull request. For more information, see "About status checks."
When you push changes to your publishing source on GitHub AE, GitHub Pages will attempt to build your site. If the build fails, you'll receive an email at your primary email address. You'll also receive emails for build warnings.
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You can configure a third-party service, such as Travis CI, to display error messages after each commit.
If you haven't already, add a file called Gemfile in the root of your publishing source, with the following content:
source `https://rubygems.org` gem `github-pages`
Configure your site's repository for the testing service of your choice. For example, to use Travis CI, add a file named .travis.yml in the root of your publishing source, with the following content:
language: ruby rvm: - 2.3 script: "bundle exec jekyll build"
You may need to activate your repository with the third-party testing service. For more information, see your testing service's documentation.