I just had the same issue today. (09/19/2020). But I fixed it once I clear out some space. It says 11Gb in the App Store, but that is a compressed file. You will need at least 30 GB free for when it gets decompressed; them I will let you install it with no problems.
Hope this helps!
Newtones
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
From
Paterson, NJ, United States