'IncorrectArchitecture' error message

[Spiff]

Could anyone help me with this?

I tried to test my app on my physical iPad, going through the required stages:
1) Open Xcode and select "Organizer" in the 'Window' menu,
2) Drag the App bundle into the 'Applications' pane.
The app starts copying but gets stuck at 'InstallingEmbeddedProfile' at the end of the process, followed by "Unknown error message: IncorrectArchitecture was received from the device".
I would be very grateful if someone could help me out of this.
Best,

Spifff
(Mac OX Lion, LiveCode 5.5, Apple developer and LiveCode licenses)