First, verify that the ARIA Player is up to date.


Once the ARIA player is up to date, try the following:

  1. Navigate to Macintosh HD > Library > Audio > Plug Ins > Components.
  2. Verify that ARIA Player AU.compenent is in this folder. 
  3. Open Logic and go to Preferences > Audio Units Manager, then click Rescan.

The plug in should now be available under AU Instruments > Garritan.