CS4 namespace issues

Question

I'm getting strange compiler errors, that seem to be CS4
getting instance variables confused with class packages.
- 'Call to a possibly undefined method addEventListener' on
var update
- 'Access of undefined property keyEquivalent in package
update.
- 'void used where a Boolean value was expected on bool =
!bool;
I'm guessing the first two issues are to do with the
classpath's being somehow screwed up...I'm not entirely sure, if my
package classpath path from CS3 is a source path, library, or
external library path in CS4. The second error sounds as if my
variable 'update:NativeMenuItem' is somehow being confused for an
'update' package I have.....which is odd.

Answer 1

Yeah, so if I change the variable name from update to upd, it
compiles properly in CS4. Is something broken with CS4 namespaces?
The same .fla document worked in CS3, and I'm only importing a
class within the update package. It worries me how many similar
issues I may bump into with other existing projects, as I've never
had the Document class reference package names, in a way that
conflicts with variables using the same name.
import update.UpdateManager;
var update:Object = {test:'namespace conflict'};
trace(update.test);
//1202: Access of undefined property test in package
update.