[MessageNotUnderstood]: UndefinedObject does not understand: #asFilename in process SettingsDialog [105]

UndefinedObject(Object) >> doesNotUnderstand: Message(#asFilename) {8065024} [16]
UndefinedObject(**NONE**) >> asFilename {8069120} [7]
HGSourceCodeManagementSettingsAppl >> doSelectHGCommand {8073216} [7]
HGSourceCodeManagementSettingsAppl(Object) >> perform: #doSelectHGCommand {8077312} [32]
HGSourceCodeManagementSettingsAppl(Object) >> perform:withOptionalArgument: #doSelectHGCommand true {8081408} [8]
MessageSend >> value: true {8085504} [4]
ButtonController >> performAction {8089600} [35]
ButtonController >> buttonRelease:x:y: 1 26 20 {8093696} [37]
ButtonController(Object) >> perform:withArguments: #buttonRelease:x:y: #(1 26 20) {8097792} [169]
Button(DisplaySurface) >> dispatchEvent:type:arguments:withFocusOn:delegate: WindowEvent::ButtonReleaseEvent(#buttonRelease:x:y: view: Button args: #(1 26 20)) #buttonRelease:x:y: #(1 26 20) a FilenameEditField true {8101888} [236]
Button(DisplaySurface) >> dispatchEvent:withFocusOn:delegate: WindowEvent::ButtonReleaseEvent(#buttonRelease:x:y: view: Button args: #(1 26 20)) a FilenameEditField true {8105984} [5]
[] in WindowGroup>>processEventsWithModalGroup: >> value {8110080} [231]
WindowGroup::LastEventQuery class(GenericException class) >> handle:do: [] in WindowGroup>>processEventsWithModalGroup: [] in WindowGroup>>processEventsWithModalGroup: {8114176} [14]
[] in WindowGroup>>processEventsWithModalGroup: >> value {8118272} [17]
Block >> ensure: [] in WindowGroup>>processEventsWithModalGroup: {8122368} [12]
WindowGroup >> processEventsWithModalGroup: nil {8126464} [243]
[] in WindowGroup>>eventLoopWhile:onLeave: >> value {8130560} [162]
SignalSet >> handle:do: [] in WindowGroup>>eventLoopWhile:onLeave: [] in WindowGroup>>eventLoopWhile:onLeave: {8134656} [14]
[] in WindowGroup>>eventLoopWhile:onLeave: >> value {8138752} [85]
Block >> ensure: [] in WindowGroup>>startupWith: (optimized) {8142848} [12]
WindowGroup >> eventLoopWhile:onLeave: [] in WindowGroup>>startupWith: (optimized) [] in WindowGroup>>startupWith: (optimized) {8146944} [194]
[] in WindowGroup>>startupWith: >> value {8151040} [28]
Block >> ensure: [] in WindowGroup>>startupWith: {8155136} [12]
[] in WindowGroup>>startupWith: >> value {8159232} [29]
WindowGroup::WindowGroupQuery class(Notification class) >> answer:do: WindowGroup(SettingsDialog) [] in WindowGroup>>startupWith: {8163328} [10]
[] in WindowGroup>>startupWith: >> value {8167424} [23]
ExceptionHandlerSet >> handleDo: [] in WindowGroup>>startupWith: {8171520} [14]
[] in Process>>start >> value {8175616} [35]
SignalSet >> handle:do: [] in Process>>start [] in Process>>start {8179712} [14]
[] in Process>>start >> value {8183808} [23]
Block >> ensure: [] in Process>>start {8187904} [12]
Process >> start {8192000} [37]
UndefinedObject >> nil {8196096} [0]