No preferred display language

hi there
I try to build jellyfin from souce code,

After build successfully, I copy

“jellyfin-web” from “jellyfin_10.5.0\jellyfin-web” to


but when I run it, it complaints about no “Preferred display language”, any ideas ?


We’re on Jellyfin 10.5.5 now, so make sure you use the correct versions.

Also, some browsers may not show the screen correctly. It looks like this is one of them. We know that the “old” Edge has problems, but the new Edge (chromium) works correctly. Firefox and Chrome also work.

yes, it works when I use Jellyfin 10.5.5 source code, thx