Did you check that TheManifestBuilder do not return a class?
���What about this method?
RPackage>>packageManifest^ (self classesdetect: [ :each | each isManifest ]ifNone: [ TheManifestBuilder new createManifestNamed: name]) new
Anyone know why does it create an instance of the Manifest instead of returning the class?
(or why are we using instances of Manifests in the image?)