Every now and then, I get the error below. My client is seeing it
quite regularly and there is no way for the application to recover
from it - after clicking "dismiss" the screen remains partially drawn
and no buttons work. It's all internal to Tile/Container and in a
callLater() so I can't track it down to anything in my own code. The
dataProvider for the tile is just a binding to an ArrayCollection.
I've also tried listening for the change events manually and only
setting it when I know the array has length > 0.
I can reproduce this much more frequently when profiling in FB3, but
my client is seeing it a lot just in normal IE plugin.
The error occurs in a fairly innocent line in Tile.as (663):
// Loop over the children to find the max child width and height.
var n:int = numChildren;
for (var i:int = 0; i < n; i++)
{
var child:IUIComponent = IUIComponent(getChildAt(i));
Somehow, while i goes from 0 to numChildren, it gets to be out of bounds.
The full error is:
RangeError: Error #2006: The supplied index is out of bounds.
at flash.display::DisplayObjectContainer/getChildAt()
at
mx.core::Container/getChildAt()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\Container.as:2369]
at
mx.containers::Tile/http://www.adobe.com/2006/flex/mx/internal::findCellSize()[E:\dev\flex_201_borneo\sdk\frameworks\mx\containers\Tile.as:663]
at
mx.containers::Tile/measure()[E:\dev\flex_201_borneo\sdk\frameworks\mx\containers\Tile.as:372]
at
mx.core::UIComponent/measureSizes()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\UIComponent.as:5452]
at
mx.core::UIComponent/validateSize()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\UIComponent.as:5398]
at
mx.core::Container/validateSize()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\Container.as:2688]
at
mx.managers::LayoutManager/validateSize()[E:\dev\flex_201_borneo\sdk\frameworks\mx\managers\LayoutManager.as:557]
at
mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\flex_201_borneo\sdk\frameworks\mx\managers\LayoutManager.as:646]
at Function/http://adobe.com/AS3/2006/builtin::apply()
at
mx.core::UIComponent/callLaterDispatcher2()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\UIComponent.as:7975]
at
mx.core::UIComponent/callLaterDispatcher()[E:\dev\flex_201_borneo\sdk\frameworks\mx\core\UIComponent.as:7918]
I'm switching to an alternative layout now- Grid or box combinations;
hopefully that will solve it. But has anyone seen something like this
before?
Peter
