This change was added in 4.10, so you can upgrade to 4.9.1 and still benefit from the improvements after 4.6.
Alternatively, you can use 4.10 and monkey patch the SDK. The problem is in the file: frameworks\projects\framework\src\mx\collections\ListCollectionView.as. Simple comment the removeItem() function. This is a temporary solution only. Best would be to contact the WebOrb team and request them to fix their code to accommodate for the new changes. Thanks, Om On Wed, Aug 28, 2013 at 1:20 AM, Arne Broedel <arne.broe...@googlemail.com>wrote: > so there is no simple workaround. Either Flex SDK would have to be changed > or the weborb.swc. So I will probably have to use Flex 4.6. Is that right? > > > 2013/8/28 Alex Harui <aha...@adobe.com> > > > > > > > On 8/27/13 10:35 PM, "Justin Mclean" <jus...@classsoftware.com> wrote: > > > > >Hi, > > > > > >> That's always a risk when we add new features. > > >Wasn't that change reversed and the signature of removeItem still > > >identical to before? > > We removed it from IList, but left it on ListCollectionView. > > > > -Alex > > > > >