Check the version of the Digital Camera RAW Compatibility Update that is installed. Your camera should be supported by update 3.13: The version of the raw support is shown in the About panel: from the main menu bar:
Aperture > About Aperture
Supported by Digital Camera RAW Compatibility Update 3.13
Canon EOS-1D X
Olympus OM-D E-M5
Panasonic LUMIX DMC-GF5
Sony Alpha SLT-A57
Download the latest from here:
If you have the latest raw support installed, but Aperture does not recognize the format, try to register the raw support for your camera with the launch services db, see this post by Alan Roseman:
But also read the following post, that explain how this is supposed to work and to correct the typo in the command
In short: Quit Aperture, open the terminal, paste the follwing text in (all in one single line) and hit return; then reboot the system.
/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchSe rvices.framework/Versions/A/Support/lsregister -R /System/Library/CoreServices/CoreTypes.bundle/Contents/Library
Indina, if you've reinstalled the raw update, I am running out of ideas.
You should start a new thread with your problem. Since this has been marked "solved", you are not likely to get any others from other regular posters here.
OT: I still have to find the time to go down to the harbour for some "Blue Port" pictures