1 Reply Latest reply on Aug 7, 2009 9:43 AM by Gregory Lafrance

    Issue while starting the flex application

    sudhakaratbits

      I have an app that has been working for over 4 months now, but it started giving me this strange error starting this morning. It doesn't even start the app. Pls let me know if you have any suggestions.

       

      TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at mx.controls::AdvancedDataGridBaseEx/http://www.adobe.com/2006/flex/mx/internal::getHeaderInfo()[C:\work\flex\dmv_automation\pr ojects\datavisualisation\src\mx\controls\AdvancedDataGridBaseEx.as:2366]
          at mx.controls::AdvancedDataGrid/http://www.adobe.com/2006/flex/mx/internal::getHeaderInfo()[C:\work\flex\dmv_automation\pr ojects\datavisualisation\src\mx\controls\AdvancedDataGrid.as:2147]
          at mx.controls::AdvancedDataGrid/getFieldSortInfo()[C:\work\flex\dmv_automation\projects\dat avisualisation\src\mx\controls\AdvancedDataGrid.as:6840]
          at mx.controls.advancedDataGridClasses::AdvancedDataGridHeaderRenderer/getFieldSortInfo()[C: \work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\advancedDataGridClass es\AdvancedDataGridHeaderRenderer.as:757]
          at mx.controls.advancedDataGridClasses::AdvancedDataGridHeaderRenderer/measure()[C:\work\fle x\dmv_automation\projects\datavisualisation\src\mx\controls\advancedDataGridClasses\Advanc edDataGridHeaderRenderer.as:481]
          at mx.core::UIComponent/measureSizes()[C:\autobuild\3.2.0\frameworks\projects\framework\src\ mx\core\UIComponent.as:5956]
          at mx.core::UIComponent/validateSize()[C:\autobuild\3.2.0\frameworks\projects\framework\src\ mx\core\UIComponent.as:5902]
          at mx.managers::LayoutManager/validateClient()[C:\autobuild\3.2.0\frameworks\projects\framew ork\src\mx\managers\LayoutManager.as:837]
          at mx.controls::AdvancedDataGridBaseEx/calculateHeaderHeight()[C:\work\flex\dmv_automation\p rojects\datavisualisation\src\mx\controls\AdvancedDataGridBaseEx.as:2249]
          at mx.controls::AdvancedDataGrid/calculateHeaderHeight()[C:\work\flex\dmv_automation\project s\datavisualisation\src\mx\controls\AdvancedDataGrid.as:3141]
          at mx.controls::AdvancedDataGridBaseEx/makeRowsAndColumns()[C:\work\flex\dmv_automation\proj ects\datavisualisation\src\mx\controls\AdvancedDataGridBaseEx.as:1915]
          at mx.controls::AdvancedDataGrid/makeRowsAndColumns()[C:\work\flex\dmv_automation\projects\d atavisualisation\src\mx\controls\AdvancedDataGrid.as:7169]
          at mx.controls.listClasses::AdvancedListBase/updateDisplayList()[C:\work\flex\dmv_automation \projects\datavisualisation\src\mx\controls\listClasses\AdvancedListBase.as:3504]
          at mx.controls::AdvancedDataGridBaseEx/updateDisplayList()[C:\work\flex\dmv_automation\proje cts\datavisualisation\src\mx\controls\AdvancedDataGridBaseEx.as:1778]
          at mx.controls::AdvancedDataGrid/updateDisplayList()[C:\work\flex\dmv_automation\projects\da tavisualisation\src\mx\controls\AdvancedDataGrid.as:6007]
          at mx.controls.listClasses::AdvancedListBase/validateDisplayList()[C:\work\flex\dmv_automati on\projects\datavisualisation\src\mx\controls\listClasses\AdvancedListBase.as:3072]
          at mx.managers::LayoutManager/validateDisplayList()[C:\autobuild\3.2.0\frameworks\projects\f ramework\src\mx\managers\LayoutManager.as:622]
          at mx.managers::LayoutManager/doPhasedInstantiation()[C:\autobuild\3.2.0\frameworks\projects \framework\src\mx\managers\LayoutManager.as:677]
          at Function/http://adobe.com/AS3/2006/builtin::apply()
          at mx.core::UIComponent/callLaterDispatcher2()[C:\autobuild\3.2.0\frameworks\projects\framew ork\src\mx\core\UIComponent.as:8628]
          at mx.core::UIComponent/callLaterDispatcher()[C:\autobuild\3.2.0\frameworks\projects\framewo rk\src\mx\core\UIComponent.as:8568]