It happened to me as well, regardless of the update and upgrade. I didn't fix it yet, but here's an answer: https://askubuntu.com/questions/563245/avconv-warning-while-downloading-youtube-video
- [Trisquel-users] Weird behaviour of youtube-dl j . schraten
- Re: [Trisquel-users] Weird behaviour of youtube-dl tomlukeywood
- Re: [Trisquel-users] Weird behaviour of youtube-dl mcz
- Re: [Trisquel-users] Weird behaviour of youtube-dl j . schraten
- Re: [Trisquel-users] Weird behaviour of youtube-dl onpon4