<div dir="auto">Thanks Ken. I had seen that message but (wrongly, I guess) assumed something would already be in place to deal with such situations. The good news is that this implies that the package loader works asynchronously...?...</div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue., Mar. 21, 2023, 3:02 p.m. , <<a href="mailto:ken.dickey@whidbey.com">ken.dickey@whidbey.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 2023-03-19 16:19, Alexandre Rousseau via Cuis-dev wrote: > My startup configuration script (thanks Hilaire) includes these lines: > >> Feature require: #'Theme-Themes'. >> ClassicTheme beCurrent. > > Command line launching of Squeak and image + script reports this error: > >> 2023-03-19T19:10:00.886 process:40 709851 UndefinedObject>>DoIt >> (ClassicTheme is Undeclared) >> 2023-03-19T19:10:00.886 process:40 709851 Package Theme-Themes >> successfully installed > > Clearly, the feature is not yet loaded when I attempt to send a message > to ClassicTheme. > > Feature doesn't seem to dispatch events when it is done "requiring" a > package, so I am wondering how you would address this. Alexandre, Not sure what your context is, but note that you can subclass CodePackage and define #postPackageInstall (and/or prePackageInstall) to do pre-install checks and post-install actions. Browse code for example usage in: EnhancedText/Unicode/<a href="http://UniCodesTrueType.pck.st" rel="noreferrer noreferrer" target="_blank">UniCodesTrueType.pck.st</a> HTH, -KenD </blockquote></div>