Flex trace() doesn't print

Question

There's a lot of examples for ActionScript over the web using trace() to print results.

I'd tryied it using Flash Builder 4, but it don't print to the console. Where can I see the output?

Answer 1

Are you sure that you are running the debug build and not the release build?

Answer 2

1. Are you in debug mode ?
2. Put a breakpoint on the line where the trace() is wrote (ctrl+shift+b), debug and see if the trace is reached.
3. Are you printing the right string? try to use also a static text in front when doing trace like trace("Loading file: ", _myFile.url);

Answer 3

If you do not want to use Flash Player debugger, but you want to log messages without annoying Alert popups, you can easily log to the Firebug console.