Hi Eliot, I can't convince Eclipse to work this way(browse for external program) with any other application. Tried with Safari and Firefox, failed in the same way. It looks like Eclipse has issues with the application launchers. The workaround for this is to make sure Oxygen is associated with that file extension and then simply use Open With -> System Editor. Regards, Adrian Adrian Buza oXygen XML Editor and Author support Tel: +1-650-352-1250 ext.202 Fax: +40-251-461482 support@oxygenxml.com http://www.oxygenxml.com Eliot Kimber wrote:

Under OSX I renamed my Oxygen 11.2 install from "oxygen" to "oxygen_11.2" then unpackaged the tar.gz for Oxygen 12 and moved the resulting "oxygen" dir to my Applications directory.

I was then able to start Oxygen fine and verify that v12 started.

However, from Eclipse, when I try to open a file in Oxygen by navigating to the Oxygen.app icon in the "Choose external application" dialog, the icon shows as a text file, not an application, after I choose it, and trying to run it gives a failure with this detail message:

Error opening external editor (/Applications/oxygen/Oxygen.app). Cannot run program "/Applications/oxygen/Oxygen.app": error=13, Permission denied

Any idea what the cause might be?

I don't remember having this problem in the past.

Cheers,

E.