I've been frustrated over a year with trying to get AIR installed on my laptop. I had beta versions working at one point, but somewhere along the line all attempts to install apps resulted in the dreaded "the application could not be installed because the AIR file is damaged" error. After months of fighting it and following instructions in the numerous threads here, I gave up.
I'm right back where I started though. I'm trying to install AIR and TweetDeck. I get the AIR file is damaged message if I attempt the install in my primary user account.
Here's the airappinstall.log:
Starting app install of http://downloads.tweetdeck.com/TweetDeck_0_26.air
UI SWF load is complete
failed while unpackaging: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="Unhandled exception Error: Error #2014" errorID=2014]
starting cleanup of temporary files
application installer exiting
Here's the airinstall.log:
UI SWF load is complete
stateRunningAppInstaller: appinstaller -runtime "/var/folders/CO/COLPFwJZGACYWWjy3XA3NE+++TI/-Tmp-/airqfNqKN/Adobe AIR Installer.app/Contents/Frameworks" -playerVersion=10,0,22,87 -sandboxType=remote -securityDomain=airdownload.adobe.com -https=false -fromUserEvent=true -- -withRuntime -url http://downloads.tweetdeck.com/TweetDeck_0_26.air
App installer failed; exit code 7
Interestingly, if I log into the Admin account on the Mac, I am able to install and run TweetDeck. I installed in that account with no problems, but when I go back to my user account the app appears in my /Applications directory, but starting it up just opens the AIR installer which stalls and has to be force-quit to exit it. The log files show no entries.
I've uninstalled and reinstalled AIR a dozen times. Fixed permissions, deleted the /var/folders/zz folder & rebooted, deleted all certificates in the keychain.
This is driving me nuts.
Any suggestions please, and before suggesting, that I uninstall, fix permissions, delete /var/folders/zz, check the keychain, please note that I've already done that. ;-)
Aha! I deleted /var/folders/CO folder, and tried running TweetDeck again, and AIR installer finished and all is running now.
Might I suggest for future reference that all /var/folders sub-folders be backed up and deleted when having AIR troubles.
12 months of frustration finally resolved.