"All checks have failed" when submitting the pull request to ModernDive

[Xiaochi]

Thanks to this masterpiece, I finally have a deep understanding of statistical inference. Thank you very much!

As I read through this book, I spotted some typos or errors, and I proposed to edit it via GitHub Pull Request. However, there are always messages telling me some checks have failed, such as the status shown in the following screenshot:

What does it mean? Can you see the pull request I made?

Many thanks for your kind guidance.

[Albert Y. Kim]

Hey @xiaochi-liu, thanks for your PR's. The issue is that this repo uses Travis for continuous integration (like testing whether code changes in PR's are valid). The R community has encouraged people to move away from Travis CI to GitHub actions (see this blogpost). We might make this switch, but given how infrequently we update this repo given that its content is stable, it might not be worth the time.