Here is how I now solved the problem. The issue for me was using Mac and zipping the files using a right click on the folder and choosing compress. Uploading this file results in an error. If you zip the folder on the command line with “zip -r enfold-child.zip enfold-child/” it works.
Cheers,
Juergen
I am having the same problem. I have tried your proposed solution twice but there was no change. It still does not work to install the child theme.
Best,
Juergen