Access of possibly undefined 'blah' message even though class looks correct

Got a class, lets call it ‘SomeClass’, the class defines a public static const called SOME_EVENT which is a string_________Trying to access this via the type name throws the above error…?!?__________Anyone seen this before?_________e.g. in a function in another class:

trace(SomeClass.SOME_EVENT);

Throws the error______WTF?________FlashDevelop resolves the member with no issues - but flash is having a fit. If I comment it out, it works (but I’m missing some functionality!)___Comparing it to other static consts that work… they are the same! Sorry had to edit, no idea why my CRLFs are being eaten…!?"?