I was trying to download from the YouTube
youtube-dl -F 249 "https://www.youtube.com/watch?v=yXT1ElMEkW8"
youtube-dl --version is 2019.11.28
I went through the link Requested formats are incompatible for merge, but could not help to resolve the issue
[youtube] yXT1ElMEkW8: Downloading webpage
[youtube] yXT1ElMEkW8: Downloading video info webpage
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
ERROR: unable to open for writing: [Errno 13] Permission denied: '1.6 - Cloning Repo and Push_Pull - Git and GitHub for Poets-yXT1ElMEkW8.f247.webm.part'