[Pharo-users] Can't <BlSpace> addChild: <BlSpartaMozCanvasBuilder>

| canvas space node text | . BlUniverse reset . space := BlSpace new . space show . space title: 'Test Space' . space extent: 800@400 . space root background: Color lightBlue . space position: 1@25 . canvas := BlSpartaMozCanvasBuilder extent: 400@250 . space root addChild: canvas This fails. Any ideas how to create a Sparta Canvas, to draw some text on?