Kolibri: No compatible source was found for this media

[mrpau-julius]

Observed behavior

during my test in kolibri integration testing for Ububtu 18.04, I installed the kolibri 0.10.0b3.
Base on the kolibri scenarios "Engage with but do not complete individual content items" and follow the instruction. when I select a video and open it. theirs a message that "No compatible source was found for this media".

Expected behavior

can see the video and can play.

Errors and logs

Specified “type” attribute of “video/mp4” is not supported. Load of media resource /content/storage/d/0/d0dbba5528f28c6512ecbe52fb6ccdcb.mp4 failed.
All candidate resources failed to load. Media load paused.
VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) No compatible source was found for this media 
Object { code: 4, message: "No compatible source was found for this media" }
media_player_module-0.10.0b3.js:12:15736
The video on this page can’t be played. Your system may not have the required video codecs for: video/mp4, video/mp4

Steps to reproduce

• login as a learner
• go to recommended page
• select a video and open it. The page will load, but can't play the video have a error message.

Context

Kolibri version: 0.10.0b3
Operating system: Ubuntu 18.04
Browser: Firefox 59.0.2(64-bit)

Screenshot

[radinamatic]

This is issue only on Ubuntu/Debian with Firefox combo, as some of the media codecs are not included by default in the installation because of the copyright. It is solved by installing Ubuntu restricted extras package.

Added the warning in the docs.

---

Edit - updated docs page:

https://kolibri.readthedocs.io/en/latest/access/access_lan.html#compatibility

[indirectlylit]

thanks!

[mrhrifat]

thanks

[NELLIRAJESH]

Thank you. It worked.