<p>I have been writing Flex applications for a few months now and luckily have not needed a full debugger as of yet, so far I have just used a few Alert boxes...</p>

<p>Is there an available debugger that is included in the free Flex SDK? I am not using FlexBuilder (I have been using Emacs and compiling with ant).</p>

<p>If not, how do you debug Flex applications without FlexBuilder? (note: I have no intentions of using flexbuilder)</p>

[{'answer_id': 56914, 'author': 'changelog', 'author_id': 5646, 'author_profile': 'https://Stackoverflow.com/users/5646', 'pm_score': 1, 'selected': False, 'text': '<p>I had the same problem when programming with ActionScript and having to test it on a browser. Try <a href="http://www.flex888.com/649/debugging-flex-with-thunderbolt.html" rel="nofollow noreferrer">this</a>. It involves using Firefox (which I believe you do) and FireBug to receive the debug messages.</p>\n'}, {'answer_id': 56929, 'author': 'hasseg', 'author_id': 4111, 'author_profile': 'https://Stackoverflow.com/users/4111', 'pm_score': 4, 'selected': True, 'text': '<p>A debugger called <code>fdb</code> is included in the Flex SDK. Here\'s some documentation on how to use it:</p>\n\n<ul>\n<li><a href="http://www.adobe.com/devnet/flex/articles/client_debug_08.html" rel="nofollow noreferrer">Adobe DevCenter: Debugging Client-Side Code in Flex Applications</a></li>\n<li><a href="http://livedocs.adobe.com/flex/3/html/help.html?content=debugging_01.html" rel="nofollow noreferrer">Flex 3 Help: Using the Command-Line Debugger</a></li>\n</ul>\n'}]
['https://Stackoverflow.com/questions/56680', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1638/']