PopUpRenderer error

Hi everyone,

I've just upgraded computers and am now receiving this error on a 3.1 viewer I've been working on. I've looked through several files within FlashBuilder and can not seem to find where this issue is arising. Can anyone provide any guidance?

Here's the error I'm receiving: component PopUpRenderer is defined more than once in this namespace. Remove the mapping to com.esri.ags.portal:PopUpRenderer or com.esri.ags.webmap:PopUpRenderer


Thanks in advance!

Ashley