Dear all,
i have facing the following error when using Tabbar to switch
between the page. The error is like that,
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at
mx.core::Container$/http://www.adobe.com/2006/flex/mx/internal::checkFocus()[C:\dev\flex_201_gmc\sdk\frameworks\mx\core\Container.as:462]
at
mx.core::UIComponent/focusInHandler()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\UIComponent.as:8063]
at flash.display::Stage/set focus()
at
mx.core::UIComponent/setFocus()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\UIComponent.as:6284]
at
mx.managers::FocusManager/setFocus()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\FocusManager.as:390]
at
mx.managers::FocusManager/mouseDownHandler()[C:\dev\flex_201_gmc\sdk\frameworks\mx\managers\FocusManager.as:1350]
I have use the Debug to trace and find that sometime the IFocusManager
is null so that the error is prompt . And it is very interesting that
not all the computer will have this problem . What i can do?
thx
capho