So I tried today to open versioner to make a configuration for Ephestos and i got this error RBMethodNode(Object)>>doesNotUnderstand: #asSequenceNode EphPyParser class(Object)>>mustBeBooleanInMagic: EphPyParser class(Object)>>mustBeBoolean MetacelloProjectRegistration class>>ExecuteUnOptimizedIn: EphPyParser class(Object)>>mustBeBooleanInMagic: EphPyParser class(Object)>>mustBeBoolean [ :cl | (answer includes: cl) ifFalse: [ (([ cl isMetacelloConfig ] on: Error do: [ :ex | ex return: false ]) and: [ cl name asString beginsWith: 'ConfigurationOf' ]) ifTrue: [ answer add: cl ] ] ] in MetacelloProjectRegistration class>>configurationClasses in Block: [ :cl | ... OrderedCollection>>do: MetacelloProjectRegistration class>>configurationClasses MetacelloToolBox class>>configurationClasses MBConfigurationRoot>>configurationClasses MBConfigurationRoot>>configurations VersionnerSpecBrowser class>>imageConfigurations VersionnerSpecBrowser class>>open [ VersionnerSpecBrowser open ] in VersionnerSpecBrowser class>>menuCommandOn: in Block: [ VersionnerSpecBrowser open ] BlockClosure>>cull: [ | 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: