I got this errormessage on “some” places while trying to install an AIR application package, while other places just worked fine.
The application could not be installed. Try installing it again. If the problem persists, contact the application author. Error #0
The first step debugging this was to find out where the AIR application installer logs errors – which by default he does not. To activate installer logging, you have to put two files in your home directory (C:\Users\youraccountname\ on Vista or C:\Documents and Settings\youraccoutname\ on XP) called .airappinstall.log and .airinstall.log.
If those two files are present, the logging writes to them automagically.
The error I found there looked like this:
Installing C:\Dokumente und Einstellungen\***\Lokale Einstellungen\Temp\fla12.tmp\setup.msi Error occurred; beginning rollback: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="1603" errorID=0]
From here on I was very sure that it has to do with privileges… (No, there is no context menu entry on AIR packages to “install as Administrator” or “run as”…)
Finally, I checked the windows event log, and found this:
Product: *** -- Error 1925. You do not have sufficient privileges to complete this installation for all users of the machine. Log on as administrator and then retry this installation.
Why can’t they show this error at the installer instead of error #0?…
Yes, installing as Administrator solved the problem!