error: Package `gee-1.0' not found in specified Vala API directories or GObject-Introspection GIR directories

Hi,

I did the ./waf configure successfully

Setting top to : /home/xsara/Source/beat-box
Setting out to : /home/xsara/Source/beat-box/build
Checking for 'gcc' (c compiler) : ok
Checking for program pkg-config : /usr/bin/pkg-config
Checking for 'gobject-2.0' : yes
Checking for 'gthread-2.0' : yes
Checking for program valac-0.8 : not found
Checking for program valac : /usr/bin/valac
Checking for valac version >= (0, 8, 0) : (0, 12, 0)
Checking for 'gtk+-2.0' >= 2.16.0 : yes
Checking for 'gee-1.0' >= 0.5.3 : yes
Checking for 'gstreamer-0.10' >= 0.10 : yes
Checking for 'taglib_c' >= 1.6.3 : yes
Checking for 'gio-2.0' >= 2.28.0 : yes
Checking for 'sqlheavy-0.1' >= 0.0 : yes
Checking for 'webkit-1.0' >= 1.2.5 : yes
Checking for 'libxml-2.0' >= 2.7.7 : yes
Checking for 'gconf-2.0' >= 2.31.91 : yes
Checking for 'libnotify' >= 0.5.0 : yes
Checking for 'unique-1.0' >= 0.9 : yes
'configure' finished successfully (0.582s)

But when I do ./waf build I get this error

Waf: Entering directory `/home/xsara/Source/beat-box/build'
[ 1/46] valac: src/BeatBox.vala src/DataBaseManager.vala src/DataBaseUpdater.vala src/Dialogs/NotImportedWindow.vala src/Dialogs/PlaylistNameWindow.vala src/Dialogs/PreferencesWindow.vala src/Dialogs/SmartPlaylistEditor.vala src/Dialogs/SongEditor.vala src/FileOperator.vala src/LastFM/AlbumInfo.vala src/LastFM/ArtistInfo.vala src/LastFM/Image.vala src/LastFM/LastFM.vala src/LastFM/SimilarSongs.vala src/LastFM/Tag.vala src/LastFM/TrackInfo.vala src/LibraryManager.vala src/LibraryWindow.vala src/Objects/MediaKeyListener.vala src/Objects/Playlist.vala src/Objects/SmartPlaylist.vala src/Objects/SmartQuery.vala src/Objects/Song.vala src/Objects/SongInfo.vala src/Objects/SoundMenuIntegration.vala src/Objects/TreeViewSetup.vala src/Settings.vala src/StreamPlayer.vala src/Widgets/AppMenu.vala src/Widgets/ElementaryEntry.vala src/Widgets/ElementaryTreeView.vala src/Widgets/InfoPanel.vala src/Widgets/MusicTreeModel.vala src/Widgets/MusicTreeView.vala src/Widgets/RatingWidget.vala src/Widgets/ScrollingLabel.vala src/Widgets/SideTreeView.vala src/Widgets/SimilarPane.vala src/Widgets/SimilarSongsView.vala src/Widgets/SimpleOptionChooser.vala src/Widgets/SortHelper.vala src/Widgets/ToolButtonWithMenu.vala src/Widgets/TopDisplay.vala src/Widgets/Welcome.vala -> build/src/BeatBox.c build/src/DataBaseManager.c build/src/DataBaseUpdater.c build/src/Dialogs/NotImportedWindow.c build/src/Dialogs/PlaylistNameWindow.c build/src/Dialogs/PreferencesWindow.c build/src/Dialogs/SmartPlaylistEditor.c build/src/Dialogs/SongEditor.c build/src/FileOperator.c build/src/LastFM/AlbumInfo.c build/src/LastFM/ArtistInfo.c build/src/LastFM/Image.c build/src/LastFM/LastFM.c build/src/LastFM/SimilarSongs.c build/src/LastFM/Tag.c build/src/LastFM/TrackInfo.c build/src/LibraryManager.c build/src/LibraryWindow.c build/src/Objects/MediaKeyListener.c build/src/Objects/Playlist.c build/src/Objects/SmartPlaylist.c build/src/Objects/SmartQuery.c build/src/Objects/Song.c build/src/Objects/SongInfo.c build/src/Objects/SoundMenuIntegration.c build/src/Objects/TreeViewSetup.c build/src/Settings.c build/src/StreamPlayer.c build/src/Widgets/AppMenu.c build/src/Widgets/ElementaryEntry.c build/src/Widgets/ElementaryTreeView.c build/src/Widgets/InfoPanel.c build/src/Widgets/MusicTreeModel.c build/src/Widgets/MusicTreeView.c build/src/Widgets/RatingWidget.c build/src/Widgets/ScrollingLabel.c build/src/Widgets/SideTreeView.c build/src/Widgets/SimilarPane.c build/src/Widgets/SimilarSongsView.c build/src/Widgets/SimpleOptionChooser.c build/src/Widgets/SortHelper.c build/src/Widgets/ToolButtonWithMenu.c build/src/Widgets/TopDisplay.c build/src/Widgets/Welcome.c
error: Package `gee-1.0' not found in specified Vala API directories or GObject-Introspection GIR directories
Waf: Leaving directory `/home/xsara/Source/beat-box/build'
Build failed
 -> task failed (exit status 1):
 {task 3074065132L: valac_task BeatBox.vala,DataBaseManager.vala,DataBaseUpdater.vala,NotImportedWindow.vala,PlaylistNameWindow.vala,PreferencesWindow.vala,SmartPlaylistEditor.vala,SongEditor.vala,FileOperator.vala,AlbumInfo.vala,ArtistInfo.vala,Image.vala,LastFM.vala,SimilarSongs.vala,Tag.vala,TrackInfo.vala,LibraryManager.vala,LibraryWindow.vala,MediaKeyListener.vala,Playlist.vala,SmartPlaylist.vala,SmartQuery.vala,Song.vala,SongInfo.vala,SoundMenuIntegration.vala,TreeViewSetup.vala,Settings.vala,StreamPlayer.vala,AppMenu.vala,ElementaryEntry.vala,ElementaryTreeView.vala,InfoPanel.vala,MusicTreeModel.vala,MusicTreeView.vala,RatingWidget.vala,ScrollingLabel.vala,SideTreeView.vala,SimilarPane.vala,SimilarSongsView.vala,SimpleOptionChooser.vala,SortHelper.vala,ToolButtonWithMenu.vala,TopDisplay.vala,Welcome.vala -> BeatBox.c,DataBaseManager.c,DataBaseUpdater.c,NotImportedWindow.c,PlaylistNameWindow.c,PreferencesWindow.c,SmartPlaylistEditor.c,SongEditor.c,FileOperator.c,AlbumInfo.c,ArtistInfo.c,Image.c,LastFM.c,SimilarSongs.c,Tag.c,TrackInfo.c,LibraryManager.c,LibraryWindow.c,MediaKeyListener.c,Playlist.c,SmartPlaylist.c,SmartQuery.c,Song.c,SongInfo.c,SoundMenuIntegration.c,TreeViewSetup.c,Settings.c,StreamPlayer.c,AppMenu.c,ElementaryEntry.c,ElementaryTreeView.c,InfoPanel.c,MusicTreeModel.c,MusicTreeView.c,RatingWidget.c,ScrollingLabel.c,SideTreeView.c,SimilarPane.c,SimilarSongsView.c,SimpleOptionChooser.c,SortHelper.c,ToolButtonWithMenu.c,TopDisplay.c,Welcome.c}
''