Help installing ArduinoCreateAgent.app on Snow Leopard

I have tried to install the CreateAgent app on my Macbook Pro 1,1 running Mac OS X 10.6.8.

The installer completes, but attempting to launch the app results in the message "You can't open the application ArduinoCreateAgent.app because it is not supported on this type of Mac."

Is there any way to get it to work on this computer?