I was reading the chapter on Pharo sound and since Pharo 4 has not Pharo Sound in the configuration browser I decided to try via gofer, it loads the configurations just fine (please note that the syntax is wrong because : are missing for the keyword messages ) but this (#ConfigurationOfPharoSound asClass project version: #stable) load gives me the error that the stable version is not defined [ (MetacelloSymbolicVersionDoesNotExistError project: self project versionString: aVersionString) signal ] in MetacelloMCProject(MetacelloProject)>>version: in Block: [ (MetacelloSymbolicVersionDoesNotExistError proje...etc... Dictionary>>at:ifAbsent: MetacelloMCProject(MetacelloProject)>>version: UndefinedObject>>DoIt OpalCompiler>>evaluate SmalltalkEditor>>evaluateSelectionAndDo: SmalltalkEditor>>evaluateSelection [ textMorph editor evaluateSelection ] in PluggableTextMorph>>doIt in Block: [ textMorph editor evaluateSelection ] [ result := editBlock value ] in PluggableTextMorph>>handleEdit: in Block: [ result := editBlock value ] TextMorphForEditView(TextMorph)>>handleEdit: PluggableTextMorph>>handleEdit: PluggableTextMorph>>doIt Workspace(Object)>>perform:orSendTo: [ | selArgCount | "show cursor in case item opens a new MVC window" (selArgCount := selector numArgs) = 0 ifTrue: [ target perform: selector ] ifFalse: [ selArgCount = arguments size ifTrue: [ target perform: selector withArguments: arguments ] ifFalse: [ target perform: selector withArguments: (arguments copyWith: evt) ] ]. self changed ] in ToggleMenuItemMorph(MenuItemMorph)>>invokeWithEvent: in Block: [ ... BlockClosure>>ensure: CursorWithMask(Cursor)>>showWhile: ToggleMenuItemMorph(MenuItemMorph)>>invokeWithEvent: ToggleMenuItemMorph(MenuItemMorph)>>mouseUp: ToggleMenuItemMorph(MenuItemMorph)>>handleMouseUp: MouseButtonEvent>>sentTo: ToggleMenuItemMorph(Morph)>>handleEvent: MorphicEventDispatcher>>dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: ToggleMenuItemMorph(Morph)>>processEvent:using: MorphicEventDispatcher>>dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: MenuMorph(Morph)>>processEvent:using: MenuMorph(Morph)>>processEvent: MenuMorph>>handleFocusEvent: [ ActiveHand := self. ActiveEvent := anEvent. result := focusHolder handleFocusEvent: (anEvent transformedBy: (focusHolder transformedFrom: self)) ] in HandMorph>>sendFocusEvent:to:clear: in Block: [ ...