XMLUtil class in Adobe Flash CS5 and error 1061

Recently I tried to compile older CS4 project with Flash CS5 but was getting error 1061 error.

I looked on the net and found this useful posting which pointed that the error is because of conflict of two XMLUtil classes eventhough both have different namespaces.

When i removed the $(AppConfig)/ActionScript 3.0/libs/ directory within ActionScript export settings, everything seem fine, as it compiled without any errors.

Thanks to deRaab, for this post..

http://blog.derraab.com/2010/05/18/undocumented-xmlutil-class-in-adobe-flash-cs5/

It really saved a lot of time for me..