Music app's grilo plugin package needs to depend on mediascanner

Thanks for reporting this. The mediascanner-service scans more than just ~/Music, so it should pick up anything in the user's $HOME directory.

The default configuration for the media scanner searches the XDG music, videos, pictures and downloads folders. That is, the outputs of the following commands:

    xdg-user-dir MUSIC
    xdg-user-dir VIDEOS
    xdg-user-dir PICTURES
    xdg-user-dir DOWNLOAD

Do those commands show the directories you'd expect to be searched? If not, is there a ~/.config/user-dirs.dirs file in your home directory, and does its contents look sane?

IMHO It's not a language error:

barra@Saucy:~/Scrivania$ xdg-user-dir MUSIC
/home/barra/Musica
barra@Saucy:~/Scrivania$ xdg-user-dir MUSIC
/home/barra/Musica
barra@Saucy:~/Scrivania$ xdg-user-dir VIDEOS
/home/barra/Video
barra@Saucy:~/Scrivania$ xdg-user-dir PICTURES
/home/barra/Immagini
barra@Saucy:~/Scrivania$ xdg-user-dir DOWNLOAD
/home/barra/Scaricati

But starting app in terminal:

barra@Saucy:~$ music-app
unity::action::ActionManager::ActionManager(QObject*):
 Could not determine application identifier. HUD will not work properly.
 Provide your application identifier in $APP_ID environment variable.
Debug: Queue: Now has: 0 tracks
Tracks in playlist onCountChanged: 0
Debug: onCountChanged: 0
UCUriHandler: Empty "APP_ID" environment variable, ignoring.
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Icon.qml:77:5: QML Image: Failed to get image from provider: image://theme/share
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Icon.qml:77:5: QML Image: Failed to get image from provider: image://theme/delete
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Icon.qml:77:5: QML Image: Failed to get image from provider: image://theme/edit
Registry is ready
Available ? true
griloModel.count 0
[30,125,124,123,122,121,29,120,40,119,118,117,28,25,33,116,31,115,44,114,22,7,47,113,21,46,49,36,112,111,41,20,110,109,108,19,107,18,17,16,106,105,45,104,39,103,102,23,14,101,100,99,98,97,96,95,94,93,92,91,90,13,12,89,88,37,87,43,11,38,86,32,85,84,83,9,82,48,8,34,26,81,80,79,78,77,76,75,5,74,73,72,71,70,69,68,67,66,65,64,35,63,62,61,3,60,4,2,59,58,57,56,55,54,1]
[]
Refreshing
Debug: Version 1.0
Debug: Arguments on startup: Debug: false
Debug: Arguments on startup: Debug: false and file:
INITIALIZED in tracks
Playlist DB is version
DB: No change in playlist.
file:///usr/share/music-app/MusicPlaylists.qml:574: ReferenceError: playlist is not defined
Operation failed Cannot open media index params at ""/home/barra/.cache/mediascanner"": g-file-error-quark(4): File o directory non esistente
file:///usr/share/music-app/MusicPlaylists.qml:574: ReferenceError: playlist is not defined

note: MediaScanner is not installed as a dependency when you install the music-app

So if you install the "mediascanner" package, do things work as expected?

Unless there is some use case I haven't thought of, it seems like a bug that grilo-plugins-0.2-mediascanner doesn't depend on the mediascanner package. Since Grilo plugins are loaded at runtime, the only reason a package would ever depend on grilo-plugins-0.2-mediascanner (as opposed to suggesting or recommending it) is if it is a hard dependency.

I had to manually install the mediascanner package to get the Music app to find music on my system.

Guess it should be a dependency somewhere.

This doesn't appear to be fixed. I just installed in a VM and had to manually install mediascanner and run it to see any music.

I recall having to do the same just last week upon rebuilding my VM. I think we just need a new build? [1] The last one was back in June 2013.

[1] http://packages.ubuntu.com/trusty/amd64/libs/qtdeclarative5-qtgrilo0.1

Well, not June, but September, rather.