I have the same exact problem with 2.4.2 packager. Comparing the two .xml docs you can see that the layout changed which makes me think there ought to be an updated packager as well.
I just renamed the file back the the old one and edited the contents to comply with the prior format. It worked OK, but you would think that it was changed on purpose and that there should be a new version of the packager.
RE: FCKEditor 2.4.1 Packager error
Any ideas?
RE: FCKEditor 2.4.1 Packager error
RE: FCKEditor 2.4.1 Packager error
RE: FCKEditor 2.4.1 Packager error
Re: RE: FCKEditor 2.4.1 Packager error
Re: FCKEditor 2.4.1 Packager error