How to remove error when generated report in flash player

Hello friends i am see error in my project when run on server SecurityError: Error #3769: Security sandbox violation: Only simple headers can be used with navigateToUrl() or sendToUrl(). at global/flash.net::navigateToURL() at Report/facpReportResultfunction()[D:\workspace\punar

How to migrate flex builder 3.0 project to flex builder 4.6

Good Morning All of you Sir/mam please help me solve flex error my error is my flex program writing in flex builder 3.0 and support flash player 9 but i am using flash player 19 then content of my program not show when i am generating pdf file is not generating in flah player 19 but whe