[FLEX-23952] Runtime exception in mx.controls.List

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Adobe Flex SDK 4.0 (Release)
• Component/s: mx: List
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Unassigned
• Reporter: Adobe JIRA
• Created: 11/May/10 08:32
• Updated: 11/May/10 22:10

Description

It's hard to reproduce this, but it is easy to fix. Here is the exception text:

TypeError: Error #1010: A term is undefined and has no properties.
at mx.controls::List/createItemRenderer()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\List.as:1951]
at mx.controls::List/http://www.adobe.com/2006/flex/mx/internal::getMeasuringRenderer()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\List.as:1880]
at mx.controls::List/commitProperties()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\controls\List.as:888]
at mx.core::UIComponent/validateProperties()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:7772]
at mx.managers::LayoutManager/validateProperties()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\LayoutManager.as:572]
at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\LayoutManager.as:730]
at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1072]

As you can see on a screenshot attached, dictionary just does not have such factory - look at the object's addresses in the memory.