I discovered MooseMonticelloImporter…. :) and some methods cannot compile :) I would merge MooseMonticelloPopulator and MooseMonticelloVisitor (because this is about only 3 stupid accessors). scope is undeclared. :( sad it means that there are not tests :( importFileNamed: name | version definitions visitor progressBar step | self setMooseModel. [ version := self repository versionFromFileNamed: name. ] on: Error do: [:ex | self inform: 'Package ', name, ' not accessible from the file system?'. ^ self targetModel]. definitions := version snapshot definitions. MooseCustomTask runWithProgress: [:bar | visitor := MooseMonticelloClassPopulator new importer: self. definitions do: [ :def | def accept: visitor. bar increment]. ] description: 'Importing classes' length: (definitions size). self setSuperclassesAndCreateStubs. "create a scope, this is necessary for the method visitor which is VW aware" scope := Dictionary new. self targetModel allClasses do: [:famixClass | famixClass attributes do: [:famixAttribute | (self scopeOfClass: famixClass) at: famixAttribute name bind: famixAttribute]]. MooseCustomTask runWithProgress: [:bar | "import methods" definitions do: [ :def | (def isKindOf: MCMethodDefinition) ifTrue: [ visitor := MooseMonticelloMethodPopulator new importer: self. def accept: visitor. self targetModel addAll: visitor entities]]. bar increment. ] description: 'Importing methods' length: (definitions size). ^ self targetModel