[Issue]: [Latest stable 10.7.x to 10.8.0] ffmpeg not found after upgrade #3908

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OVERLORD · 2026-02-07T00:06:35+03:00

OVERLORD commented

2026-02-07 00:06:35 +03:00

Originally created by @mynamewastaken on GitHub (Jun 13, 2022).

Please describe your bug

After the upgrade to 10.8.0 I saw errors in the logs that ffmpeg wasn't found:

[17:26:02] [ERR] [1] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: Error validating encoder                                                                                                                                                                               │
│ System.ComponentModel.Win32Exception (2): An error occurred trying to start process '/usr/local/bin/ffmpeg' with working directory '/'. No such file or directory                                                                                                            │
│    at System.Diagnostics.Process.ForkAndExecProcess(ProcessStartInfo startInfo, String resolvedFilename, String[] argv, String[] envp, String cwd, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, │
│    at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)                                                                                                                                                                                                       │
│    at System.Diagnostics.Process.Start()                                                                                                                                                                                                                                     │
│    at MediaBrowser.MediaEncoding.Encoder.EncoderValidator.GetProcessOutput(String path, String arguments, Boolean readStdErr)                                                                                                                                                │
│    at MediaBrowser.MediaEncoding.Encoder.EncoderValidator.ValidateVersion()

I don't know that this caused any errors for me re: transcoding, but after updating the path in web ui settings to /usr/lib/jellyfin-ffmpeg/ffmpeg it was able to find it successfully. Perhaps just an informational issue that the ffmpeg binary isn't being picked up properly.

This is the official jellyfin container running on k3s backed by traefik as a reverse proxy (if the latter info is relevant).

Thanks,
Tim

Jellyfin Version

10.8.0

if other:

No response

Environment

- OS:
- Virtualization:
- Clients:
- Browser:
- FFmpeg Version:
- Playback Method:
- Hardware Acceleration:
- Plugins:
- Reverse Proxy:
- Base URL:
- Networking:
- Storage:

Jellyfin logs

No response

FFmpeg logs

No response

Please attach any browser or client logs here

No response

Please attach any screenshots here

No response

Code of Conduct

I agree to follow this project's Code of Conduct

Originally created by @mynamewastaken on GitHub (Jun 13, 2022). ### Please describe your bug After the upgrade to 10.8.0 I saw errors in the logs that `ffmpeg` wasn't found: ``` [17:26:02] [ERR] [1] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: Error validating encoder │ │ System.ComponentModel.Win32Exception (2): An error occurred trying to start process '/usr/local/bin/ffmpeg' with working directory '/'. No such file or directory │ │ at System.Diagnostics.Process.ForkAndExecProcess(ProcessStartInfo startInfo, String resolvedFilename, String[] argv, String[] envp, String cwd, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, │ │ at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo) │ │ at System.Diagnostics.Process.Start() │ │ at MediaBrowser.MediaEncoding.Encoder.EncoderValidator.GetProcessOutput(String path, String arguments, Boolean readStdErr) │ │ at MediaBrowser.MediaEncoding.Encoder.EncoderValidator.ValidateVersion() ``` I don't know that this caused any errors for me re: transcoding, but after updating the path in web ui settings to `/usr/lib/jellyfin-ffmpeg/ffmpeg` it was able to find it successfully. Perhaps just an informational issue that the `ffmpeg` binary isn't being picked up properly. This is the official jellyfin container running on k3s backed by traefik as a reverse proxy (if the latter info is relevant). Thanks, Tim ### Jellyfin Version 10.8.0 ### if other: _No response_ ### Environment ```markdown - OS: - Virtualization: - Clients: - Browser: - FFmpeg Version: - Playback Method: - Hardware Acceleration: - Plugins: - Reverse Proxy: - Base URL: - Networking: - Storage: ``` ### Jellyfin logs _No response_ ### FFmpeg logs _No response_ ### Please attach any browser or client logs here _No response_ ### Please attach any screenshots here _No response_ ### Code of Conduct - [X] I agree to follow this project's Code of Conduct

OVERLORD added the bug stale labels 2026-02-07 00:06:35 +03:00

OVERLORD closed this issue

2026-02-07 00:06:37 +03:00

OVERLORD commented

2026-02-07 00:06:41 +03:00

@fadenb commented on GitHub (Jun 19, 2022):

Can confirm the issue as well as the fix mentioned above.
Thanks @mynamewastaken :)

@fadenb commented on GitHub (Jun 19, 2022): Can confirm the issue as well as the fix mentioned above. Thanks @mynamewastaken :)

OVERLORD commented

2026-02-07 00:06:44 +03:00

@jellyfin-bot commented on GitHub (Oct 19, 2022):

This issue has gone 120 days without comment. To avoid abandoned issues, it will be closed in 21 days if there are no new comments.

If you're the original submitter of this issue, please comment confirming if this issue still affects you in the latest release or master branch, or close the issue if it has been fixed. If you're another user also affected by this bug, please comment confirming so. Either action will remove the stale label.

This bot exists to prevent issues from becoming stale and forgotten. Jellyfin is always moving forward, and bugs are often fixed as side effects of other changes. We therefore ask that bug report authors remain vigilant about their issues to ensure they are closed if fixed, or re-confirmed - perhaps with fresh logs or reproduction examples - regularly. If you have any questions you can reach us on Matrix or Social Media.

@jellyfin-bot commented on GitHub (Oct 19, 2022): This issue has gone 120 days without comment. To avoid abandoned issues, it will be closed in 21 days if there are no new comments. If you're the original submitter of this issue, please comment confirming if this issue still affects you in the latest release or master branch, or close the issue if it has been fixed. If you're another user also affected by this bug, please comment confirming so. Either action will remove the stale label. This bot exists to prevent issues from becoming stale and forgotten. Jellyfin is always moving forward, and bugs are often fixed as side effects of other changes. We therefore ask that bug report authors remain vigilant about their issues to ensure they are closed if fixed, or re-confirmed - perhaps with fresh logs or reproduction examples - regularly. If you have any questions you can reach us on [Matrix or Social Media](https://docs.jellyfin.org/general/getting-help.html).

OVERLORD referenced this issue

2026-02-07 06:07:54 +03:00

[PR #3908] [MERGED] Use proper mediatypename #9756

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master

release-10.11.z

renovate/skiasharp-monorepo

JPVenson-patch-1

renovate/morestachio-5.x

release-10.9.z

openapi-cache

release-10.10.z

explicit-load

explicit-load-v2

feature/entity-framework

only-count-folder-item

fix/ci-workflow-refactor

release-10.8.z

release-10.7.z

EraYaN-add-management-interface

release-10.6.z

release-10.5.z

release-10.4.z

release-10.3.z

release-10.2.z

release-10.1.0

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Reference: starred/jellyfin#3908