Issues migrating from Flex Builder 3 to Flash Builder 4.5

[Ted999999]

Migrating from Flex Builder 3 (SDK 3.5) to Flash Builder 4.5 (SDK 4.5). Using Flex 3 compatibility mode. Flash Player 10.2. MX only components set.

Issue 1. A DataGridColumn error per:  Description Resource Path Location Type
Declaration of style 'direction' conflicts with previous declaration in C:\Program Files (x86)\Adobe\Adobe Flash Builder 4.5\sdks\4.5.0\frameworks\libs\mx\mx.swc(mx.controls.dataGridClasses:DataGridColumn). SPT_GUI  Unknown Flex Problem

Issue 2. Using Cairngorm 2. Have a class 'Bindable] public class GuiModel implements ModelLocator'. Now getInstance() is not defined per: private var model : GuiModel = GuiModel .getInstance(). Does Cairngorm 3 have to be used with Flash Builder 4.5?

What has to be done to resolve these issues?

[Jayasainaths]

Issue 2: Have you defined the static variable to hold the instance of the model locator? Also, have you defined a static method to return the model locator's instance?