Mine

cd /home/elinux/conary/builds/cbtracker/cbtracker; desktop-file-validate cbtracker.desktop ; desktop-file-install --vendor net --dir /home/elinux/conary/builds/cbtracker/_ROOT_//usr/share/applications  cbtracker.desktop
cbtracker.desktop: error: required key "Encoding" not found
cbtracker.desktop: warning: non-standard key "MultipleArgs" lacks the "X-" prefix
cbtracker.desktop: error: Categories values must be one of "Core", "Development", "Building", "Debugger", "IDE", "GUIDesigner", "Profiling", "RevisionControl", "Translation", "Office", "Calendar", "ContactManagement", "Database", "Dictionary", "Chart", "Email", "Finance", "FlowChart", "PDA", "ProjectManagement", "Presentation", "Spreadsheet", "WordProcessor", "Graphics", "2DGraphics", "VectorGraphics", "RasterGraphics", "3DGraphics", "Scanning", "OCR", "Photography", "Viewer", "Settings", "DesktopSettings", "HardwareSettings", "PackageManager", "Network", "Dialup", "InstantMessaging", "IRCClient", "FileTransfer", "HamRadio", "News", "P2P", "RemoteAccess", "Telephony", "WebBrowser", "WebDevelopment", "AudioVideo", "Audio", "Midi", "Mixer", "Sequencer", "Tuner", "Video", "TV", "AudioVideoEditing", "Player", "Recorder", "DiscBurning", "Game", "ActionGame", "AdventureGame", "ArcadeGame", "BoardGame", "BlocksGame", "CardGame", "KidsGame", "LogicGame", "RolePlaying", "Simulation", "SportsGame", "StrategyGame", "Education", "Art", "Construction", "Music", "Languages", "Science", "Astronomy", "Biology", "Chemistry", "Geology", "Math", "MedicalSoftware", "Physics", "Teaching", "Amusement", "Applet", "Archiving", "Electronics", "Emulator", "Engineering", "FileManager", "Shell", "ScreenSaver", "TeminalEmulator", "TrayIcon", "System", "Filesystem", "Monitor", "Security", "Utility", "Accessibility", "Calculator", "Clock", "TextEditor", "KDE", "GNOME", "GTK", "Qt", "Motif", "Java", "ConsoleOnly" (found "Application")
cbtracker.desktop: missing encoding  (guessed UTF-8)
/home/elinux/conary/builds/cbtracker/_ROOT_//usr/share/applications/net-cbtracker.desktop: warning: non-standard key "MultipleArgs" lacks the "X-" prefix
/home/elinux/conary/builds/cbtracker/_ROOT_//usr/share/applications/net-cbtracker.desktop: error: Categories values must be one of "Core", "Development", "Building", "Debugger", "IDE", "GUIDesigner", "Profiling", "RevisionControl", "Translation", "Office", "Calendar", "ContactManagement", "Database", "Dictionary", "Chart", "Email", "Finance", "FlowChart", "PDA", "ProjectManagement", "Presentation", "Spreadsheet", "WordProcessor", "Graphics", "2DGraphics", "VectorGraphics", "RasterGraphics", "3DGraphics", "Scanning", "OCR", "Photography", "Viewer", "Settings", "DesktopSettings", "HardwareSettings", "PackageManager", "Network", "Dialup", "InstantMessaging", "IRCClient", "FileTransfer", "HamRadio", "News", "P2P", "RemoteAccess", "Telephony", "WebBrowser", "WebDevelopment", "AudioVideo", "Audio", "Midi", "Mixer", "Sequencer", "Tuner", "Video", "TV", "AudioVideoEditing", "Player", "Recorder", "DiscBurning", "Game", "ActionGame", "AdventureGame", "ArcadeGame", "BoardGame", "BlocksGame", "CardGame", "KidsGame", "LogicGame", "RolePlaying", "Simulation", "SportsGame", "StrategyGame", "Education", "Art", "Construction", "Music", "Languages", "Science", "Astronomy", "Biology", "Chemistry", "Geology", "Math", "MedicalSoftware", "Physics", "Teaching", "Amusement", "Applet", "Archiving", "Electronics", "Emulator", "Engineering", "FileManager", "Shell", "ScreenSaver", "TeminalEmulator", "TrayIcon", "System", "Filesystem", "Monitor", "Security", "Utility", "Accessibility", "Calculator", "Clock", "TextEditor", "KDE", "GNOME", "GTK", "Qt", "Motif", "Java", "ConsoleOnly" (found "Application")
desktop-file-install created an invalid desktop file!
error: Shell command "cd /home/elinux/conary/builds/cbtracker/cbtracker; desktop-file-validate cbtracker.desktop ; desktop-file-install --vendor net --dir /home/elinux/conary/builds/cbtracker/_ROOT_//usr/share/applications  cbtracker.desktop" exited with exit code 1
/home/elinux/cbtracker/cbtracker.recipe:13: RuntimeError: Shell command "cd /home/elinux/conary/builds/cbtracker/cbtracker; desktop-file-validate cbtracker.desktop ; desktop-file-install --vendor net --dir /home/elinux/conary/builds/cbtracker/_ROOT_//usr/share/applications  cbtracker.desktop" exited with exit code 1