[flexcoders] Blank Application in existing project is throwing errors how? [1 Attachment]

[dorkie dork from dorktown]

I can create a new project with a blank application and it works fine
but in my existing project if i add a new application i get an error
when i run it??? What could be causing this?

I'm attaching an image of this error:
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
        at 
mx.core::UIComponent/getStyle()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:10372]
        at 
spark.components.supportClasses::SkinnableComponent/attachSkin()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableComponent.as:588]
        at 
spark.components.supportClasses::SkinnableComponent/validateSkinChange()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableComponent.as:405]
        at 
spark.components.supportClasses::SkinnableComponent/createChildren()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableComponent.as:368]
        at 
spark.components::SkinnableContainer/createChildren()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:821]
        at 
mx.core::UIComponent/initialize()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\core\UIComponent.as:7250]
        at 
spark.components::Application/initialize()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\Application.as:916]
        at scratchpad/initialize()

JP