Sometimes it doesn’t all go to plan! This page describes some of the problems that community members have reported and how to fix them.

TypeError: object() takes no parameters


2021-04-04 06:04:55,244 WARNING [mediagoblin.processing] No idea what happened here, but it failed: TypeError('object() takes no parameters',)
2021-04-04 06:04:55,262 ERROR   [waitress] Exception while serving /submit/
File "/opt/mediagoblin/mediagoblin/media_types/video/", line 338, in __setup_videoscale_capsfilter
    caps_struct.set_value('pixel-aspect-ratio', Gst.Fraction(1, 1))
TypeError: object() takes no parameters

This is caused by not having the package python3-gst-1.0 on Debian:

alembic.util.exc.CommandError: Can’t locate revision identified by ‘e9212d3a12d3’

This is caused when you’ve enabled a plugin, run dbupdate and then disabled the plugin again. Currently we recommend reinstalling the plugin, but we understand this is not ideal. See the outstanding issue raised here:

It’s possible that manually manipulating the alembic_version table may help you, but that approach is only recommended for experienced developers.