Edited .desktop contents in /usr/share/applications/workrave.desktop with this and worked.
[Desktop Entry] Version=1.0 Terminal=false Icon=workrave Type=Application Categories=Utility;GTK;Accessibility Exec=workrave Name=Workrave GenericName=Workrave Comment=Assists in the prevention and recovery of Repetitive Strain Injury (RSI)
Edited .desktop contents in /usr/share/ applications/ workrave. desktop with this and worked.
[Desktop Entry] Utility; GTK;Accessibili ty Workrave
Version=1.0
Terminal=false
Icon=workrave
Type=Application
Categories=
Exec=workrave
Name=Workrave
GenericName=
Comment=Assists in the prevention and recovery of Repetitive Strain Injury (RSI)