Note that with the latest update for Pharo 2.0 ([update 2.0] #20185) or the latest one click image https://ci.lille.inria.fr/pharo/view/Pharo%202.0/job/Pharo-2.0/lastSuccessfu... you can easily load ScriptManager using Tools -> ConfigurationBrowser -> click on "ScriptManager" and select "Install configuration (Stable version)" After loading go to "Tools" -> "ScriptManager" Note that ScriptManager is now using Fuel for exporting/importing which is not compatible with the old ReferenceStream. It now exports into *.fuel files instead of *.obj. Have fun T.