The MIDI personality file "Digi002" could not be found. If you wish to use a MIDI controller, please choose an existing MIDI personality in the MIDI controller section of the peripherals dialog.
This error will occur if the Pro Tools application has been dragged out of the Pro Tools folder in OS X and placed on the desktop for example. The Pro Tools application must remain in the Pro Tools folder. Use an alias for a shortcut on the desktop.