@omnidk this is most likely because you need to install the application on the new repository that was created for you. I posted some steps here: https://github.community/t5/GitHub-Learning-Lab/Cannot-reach-the-quot-Assign-yourself-quot-step-for-...
Try those out and let me know if you have any additional questions!
@crichID thanks for your reply. I do believe I have the app installed for all repos with full permissions. When I go to try and install again I'm getting a disabled save button which I presume means that it's already installed. Yet when I go to a repo of mine I see nothing to indicate the lab app.
@loleadan @omnidk it seems you have both encountered the same weird bug. We were able to reproduce it by switching the installation type from "Selected" to "All" after starting the course. Does that sound familiar?
To fix this, we recommend you leave and re-join the course. To do this:
1. Access the course page on GitHub Learning Lab
2. Click the button to Leave course
3. Choose the option to delete the course repository.
4. After that process completes, select the option to Join this Course
5. If you currently have the "Selected" installation type, you will need to install the GitHub Learning Lab app on the github-slideshow repository after it is created in step 4.
Please let me know if you have additional questions!
I've left, deleted, rejoined and reinstalled but I'm still receiving the same 404 error. - After persevering and deleting and rejoining and reinstalling over 6 times I managed to get access to the course.
I'm having this same issue and have for a few months. It doesn't matter which course I choose or wither I Install GitHub Learning Lab on a single repository or all of them.
I got it to work on about the 10th try... install on all repos and then went in and modified it to specific repos. :/
Thank you all so much for this feedback!
As a result, we've made modifications to Learning Lab and you should no longer see a 404 during installation behavior. If this re-occurs, please let us know and we'll continue troubleshooting.