youtube urls can't be added

[select]

I tried with drag and drop, pasting in the search field to add youtube urls but nothing is working

here is an example URL https://www.youtube.com/watch?v=_QP6Mi0vz50

can I debug this somehow?

Ubuntu 16.10 
Package: tomahawk
Version: 0.8.4+dfsg1-0ubuntu3
Priority: optional
Section: universe/kde
Source: tomahawk-player
Origin: Ubuntu
Maintainer: Kubuntu Developers <[email protected]>
Original-Maintainer: Stefan Ahlers <[email protected]>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 6.523 kB
Depends: fonts-roboto-hinted, libqca2-plugin-ossl, libqt4-sql-sqlite, libtomahawk, libboost-filesystem1.61.0, libboost-system1.61.0, libc6 (>= 2.14), libechonest2.3 (>= 2.1.0), libgcc1 (>= 1:3.0), liblastfm1 (>= 1.0.0), libqca2 (>= 2.0.2), libqt4-dbus (>= 4:4.5.3), libqt4-network (>= 4:4.5.3), libqtcore4 (>= 4:4.8.0), libqtgui4 (>= 4:4.8.0), libstdc++6 (>= 5.2)
Recommends: phonon-backend-vlc
Homepage: http://tomahawk-player.org
Download-Size: 3.670 kB
APT-Manual-Installed: yes
APT-Sources: http://ftp.uni-bayreuth.de/linux/ubuntu/ubuntu yakkety/universe amd64 Packages
Description: Multi source music player
 A music player that plays not only your local collection, but also
 streams from SoundCloud, Spotify, Beats, YouTube and many more.
 You can even connect Tomahawk with your friends via Jabber / GTalk
 and share your playlists and collection.

[marchandrs]

Youtube also not working on windows 10.

I guess this is the problem:
qui nov 10 2016 - 02:17:35 [0]: JAVASCRIPT: "C:/Users/alexm/AppData/Local/Tomahawk/manualresolvers/youtube/content/contents/code/youtube.js:0" "TypeError: 'undefined' is not a function" "undefined"

Here's the log:
log.txt

[dschmidt]

That error very much looks like you are trying to use an 0.9 resolver in the 0.8 release or vice versa

[MadaraUchiha]

I can still reproduce this, just installed on Ubuntu 16.04 from apt, version 0.8.4, soundcloud links work just fine, YouTube links seem to have no effect (although I don't know where the log might be)