Any ideas on how to run CommonInterfaceAIR.air?

Hi. Currently I am a starter on the Acrobat SDK and going through all the sample codes.

When I try to run the CommonInterfaceAIR.air SnippetRunner I get the following error message from Adobe Air.

The application could not be installed because the installer file is damaged. Try obtaining a new installer file from the application author.

Any ideas?