12 Replies Latest reply: Sep 11, 2012 10:58 AM by uldo RSS

    An unknown item is declared as the root of your MXML document.Switch to source mode to correct it.

    visualplant3

      In the "Flex in a Week" training series, every example I attempt to open in Design mode displays the error:

       

      "An unknown item is declared as the root of your MXML document.Switch to source mode to correct it."

       

      The problem has been posted numerous times, but I've yet to see an answer that describes how I can solve it. Again, I'm using the "Flex in a Week" examples exactly as downloaded from Adobe, no changes.

       

      Appreciate a solution.

       

      thanks,

      jason