5 Replies Latest reply on Jun 3, 2010 3:06 AM by Anirudh Sasikumar

    Solution: debug launch error on Windows7

    matcarter

      The error this post fixes (at least for me) is regarding debugging flex apps in a browser.  The problem being that the debugger fails to attach to the debug flash plugin on subsequent debug attempts (the first always being successful).

       

      My install of Flash Builder 4 came with flashbuilder.ini containing the following line:

       

            -Djava.net.preferIPv4Stack=true

       

      From searching the web, I see that this was to address the same issue on previous versions of Windows (at least Vista).  However this now causes the same issue on Windows7.

       

      To fix this issue on Windows7, simply remove the line or replace with

       

            -Djava.net.preferIPv4Stack=false

       

      Hope this helps