mythtvfrontend linking error

make[2]: Entering directory '/home/alexis/Documents/linux/MythTV/mythtv/mythtv/programs/mythfrontend'
g++ -m64 -Wl,-rpath-link,/usr/lib/x86_64-linux-gnu -o mythfrontend main.o playbackbox.o viewscheduled.o audiogeneralsettings.o globalsettings.o manualschedule.o programrecpriority.o channelrecpriority.o statusbox.o networkcontrol.o mediarenderer.o mythfexml.o playbackboxlistitem.o custompriority.o exitprompt.o action.o actionset.o mythcontrols.o keybindings.o keygrabber.o progfind.o guidegrid.o customedit.o schedulecommon.o scheduleeditor.o backendconnectionmanager.o programinfocache.o proglist.o proglist_helpers.o playbackboxhelper.o viewschedulediff.o themechooser.o setupwizard_general.o setupwizard_audio.o setupwizard_video.o grabbersettings.o editvideometadata.o videofileassoc.o videometadatasettings.o videoplayercommand.o videopopups.o videofilter.o videolist.o videoplayersettings.o videodlg.o videoglobalsettings.o upnpscanner.o commandlineparser.o idlescreen.o gallerythumbview.o galleryslideview.o galleryconfig.o galleryviews.o galleryslide.o gallerytransitions.o galleryinfo.o frontend.o progdetails.o proginfolist.o moc_playbackbox.o moc_viewscheduled.o moc_globalsettings.o moc_audiogeneralsettings.o moc_manualschedule.o moc_programrecpriority.o moc_channelrecpriority.o moc_statusbox.o moc_networkcontrol.o moc_custompriority.o moc_exitprompt.o moc_mythcontrols.o moc_keygrabber.o moc_progfind.o moc_guidegrid.o moc_customedit.o moc_schedulecommon.o moc_scheduleeditor.o moc_backendconnectionmanager.o moc_proglist.o moc_proglist_helpers.o moc_viewschedulediff.o moc_themechooser.o moc_setupwizard_general.o moc_setupwizard_audio.o moc_setupwizard_video.o moc_grabbersettings.o moc_editvideometadata.o moc_videofileassoc.o moc_videometadatasettings.o moc_videopopups.o moc_videofilter.o moc_videoplayersettings.o moc_videodlg.o moc_upnpscanner.o moc_idlescreen.o moc_gallerythumbview.o moc_galleryslideview.o moc_galleryconfig.o moc_galleryslide.o moc_gallerytransitions.o moc_galleryinfo.o moc_frontend.o moc_progdetails.o moc_proginfolist.o   -L../../libs/libmyth -L../../libs/libmythtv -L../../external/FFmpeg/libswresample -L../../external/FFmpeg/libavutil -L../../external/FFmpeg/libavcodec -L../../external/FFmpeg/libavformat -L../../external/FFmpeg/libswscale -L../../external/FFmpeg/libpostproc -L../../external/FFmpeg/libavfilter -L../../libs/libmythbase -L../../libs/libmythui -L../../libs/libmythupnp -L../../libs/libmythmetadata -L../../libs/libmythservicecontracts -L../../libs/libmythprotoserver -lmythswscale -lmythavformat -lmythswresample -lmythavutil -lmythavcodec -lmythpostproc -lmythavfilter -lmythtv-30 -lmythupnp-30 -lmythbase-30 -lmythui-30 -lmyth-30 -lmythmetadata-30 -lmythservicecontracts-30 -lmythprotoserver-30 -L../../libs/libmythfreemheg -lmythfreemheg-30 -L../../external/libhdhomerun -lmythhdhomerun-30 -L/usr/lib/x86_64-linux-gnu -ltag -lXext -lXinerama -lXxf86vm -lfftw3_threads -lfftw3f -lfftw3 -lxcb -lxcb-xfixes -lxcb-shape -lX11 -lfreetype -lm -llzma -lbz2 -lz -pthread -ldl -L/usr/X11R6/lib64 -L/usr/local/lib -lGL -lQt5WebKitWidgets -lQt5OpenGL -lQt5Widgets -lQt5WebKit -lQt5Gui -lQt5Network -lQt5Xml -lQt5Sql -lQt5Script -lQt5DBus -lQt5Core -lpthread
moc_globalsettings.o:(.data.rel.ro._ZTV30HostRefreshRateComboBoxSetting[_ZTV30HostRefreshRateComboBoxSetting]+0x138): undefined reference to `HostRefreshRateComboBoxSetting::ChangeResolution(StandardSetting*)'
moc_globalsettings.o:(.data.rel.ro._ZTV17VideoModeSettings[_ZTV17VideoModeSettings]+0x98): undefined reference to `VideoModeSettings::updateButton(MythUIButtonListItem*)'