Unable to stream spotify (GStreamer error: Resource not found)

[curiousercreative]

Iris version

3.70.0

Operating system(s) affected

• [ ] Windows
• [ ] MacOS
• [ ] iOS
• [ ] Android
• [x] Linux
• [ ] Other

Browser(s) affected

• [ ] Firefox
• [ ] Chrome
• [ ] Edge
• [ ] Other

What happened?

When attempting to play a spotify track, Iris never starts playing and no error is displayed. Checking mopidy logs you find an error. Seems to be related to this thread https://discourse.mopidy.com/t/mopidy-stopped-playing-spotify/6151

Logs

mopidy-1  | ERROR    2025-08-20 15:48:54,595 [7:MainThread] mopidy.audio.gst
mopidy-1  |   GStreamer error: Resource not found.

[kingosticks]

Spotify not steaming is unlikely to be a problem with a frontend client like Iris. Did you try another client? Have you rebuilt your gst Spotify plugin lately to use the latest dev version of librespot that has the latest fixes?

[curiousercreative]

Spotify not steaming is unlikely to be a problem with a frontend client like Iris. Did you try another client? Have you rebuilt your gst Spotify plugin lately to use the latest dev version of librespot that has the latest fixes?

I should have mentioned this is an issue of the iris docker image with includes mopidy and optionally installs plugins like mopidy-spotify. I tried manually installing your latest gst from the thread I linked to, but there must be more needed as I get the same result.

[jaedb]

There are some recent issues with librespot playback (due to changes on the Spotify end), but there isn't a new version released for Alpine containing recent fixes yet. Please feel free to poke the librespot team for a published build!

See

• https://github.com/librespot-org/librespot/issues/1527
• https://github.com/librespot-org/librespot/issues/1521
• https://github.com/librespot-org/librespot/pull/1513

[jaedb]

This is the issue to monitor on the librespot repo: https://github.com/librespot-org/librespot/issues/1544. Once a new version is released, I can update Iris (and Snapserver) to use this and fix this issue.

[roderickvd]

We released v0.7.0 today.

[jaedb]

Thanks @roderickvd! I'll prepare a release of snapserver with this bundled in. Do you know when this will be available precompiled for Alpine?

[roderickvd]

No, I don’t know.

[curiousercreative]

@jaedb with latest packages, I still had to manually build and install per instructions here in my iris docker container. Only now are spotify tracks playable. I could be wrong, but I believe we just need an updated image pushed to docker hub (or of course I could build my own image from your dockerfile).

[curiousercreative]

Perhaps related, the Dockerfile defaults to branch "develop" which deviates from "master" in at least the version numbers (in IRIS_VERSION and package.json), but you can see full diff here. I don't know what the intention is for branch management, which branch the docker images should be built from, etc.

[Hurlu]

Hi @curiousercreative , would you mind sharing which specific tag of gst-plugins-rs did you end up going with ?

I tried myself re-building the Dockerfile (non-Alpine, as it seems to be the default in docker hub) with gst-plugin-spotify_0.15.0-alpha.1-4 (still the same GStreamer issue) and gst-plugin-spotify_0.15.0-alpha.1-3 , same issues :/

All I did was add --branch=gst-plugin-spotify_0.15.0-alpha.1-4 in the Dockerfile where the gst-plugins-rs repo gets cloned, is there anything else you did on your end ?