I’ve spent *days* trying to figure this out – whilst installing Flexbuilder 3, I’d get continual errors on install, and when trying to run the .exe, I’d get:
java.lang.RuntimeException: No application id has been found
com.adobe.flexbuilder.standalone.product could not be found.
in the log.
But a solution has been found!
The problem was that I’m on a domain machine. When you install FB3, it’ll try and create folders in “My Documents” for configuration and preferences. My “My Documents” is a network share, mapped as part of being on the domain.
So it was trying to create folders where it either didn’t have permission, or just creating random duplicates in two places. Either way, the solution is to uninstall everything Flex related, log in to your machine as LOCAL administrator (i.e not on the domain) install FB3, log back out, and then it’ll be fine!
Not exactly user friendly :)