two months ago I set up a mybinder.org with an environment.yml file. I am not sure whether I am using the correct terms, but I accessed mybinder, added the path to my GitHub repository that I wanted to make available, clicked launch and it worked.
Today, I added a single jupyter notebook to that GitHub repository, and tried to build it again in mybinder. However, this error prevents the image to be built.
Just to make it clear, I didn’t change the environment.yml file. These two packages were already there when it worked.
How to solve? What to do?
I am sorry if my question doesn’t reach the desired standards. Some terms are confusing to me.