When I try to start this course, a repository was made automatically.
but below error is occured, and cource is not started.
@JunHyungKang I see you were able to join several other courses. Can you please try the following:
1. Confirm a repository named `github-pages-with-jekyll` does not exist on your account. If it does, delete it.
2. Try joining the course again.
I was able to join the course this morning so hopefully it was just a hiccup. If the problem persists, please let us know what time you attempted to join so we can dig through the logs.