Have you tried debugging your app with FireFox? I'm also on a mac but have never tried debugging using Safari
Cheers Tracy --- In flexcoders@yahoogroups.com, Stephen Downs <st...@...> wrote: > > I've having an extremely agonizing time dealing with mysterious alert > messages when trying to debug my Flex Builder 3 project. Debugging > begins, the status bar reads "Launching project: (91%)", the > application loads in the browser and displays, but back in Flex it > hangs with an error message: > > > Launch Failed > > Invalid argument > > > This error message could be more informative. As is, no details, no > line number given. > > Fixes I've tried, in combination and alone, to no avail: > ) Clean Project. > ) Strip mxml down to single bare Application tag. > ) Delete build folder. > > > Install details: > Mac OS X 10.6.1 > Safari 4.0.3 (6531.9) > Flex Builder 3.0.2 > Flash Player 10.0.32.18 content debugger > > Any insight would be terrific. > > Thanks, > Steve >