<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">Le 07/09/2022 à 17:21, Juan Vuletich a écrit : </div> <blockquote type="cite" cite="mid:6318B702.5070002@cuis.st">Yes. Most likely. I think your image build code could perhaps do at the end something like `UISupervisor whenUIinSafeState: [ save the image and quit ]`. If that is queued after the initialize, the initialize should be done prior to saving, and it should work OK. Hope this helps.</blockquote> Hi Juan, No it does not help. Still same error. VectorCanvas class is not initialized during the build of the DrGeo image. Only when it is runned again. From my understanding, when looking at VectorCanvas class>>initialize, the UI is never in a safe state so the UISupervisor whenUIinSafeState: [] bloc argument is not executed. It likely comes from the way I build the image which is: 1. Start VM with a stock image and an installation script <blockquote> squeak Cuis.image -s installation-script.st </blockquote> 2. Installation script is simple as: <blockquote> Feature require: '../src/DrGeo.pck.st'. (Smalltalk at: #DrGeoSystem) perform: #install. UISupervisor whenUIinSafeState: [Smalltalk saveAndQuit]. </blockquote> What is strange is: in my script the UISupervisor whenUIinSafeState: [Smalltalk saveAndQuit] is executed but not the one in VectorCanvas class>>initialize. Juan suggested I should build the image in the Cuis-Smalltalk-Dev directory. I wanted to avoid that to properly separate, but I will try that now. Hilaire <pre class="moz-signature" cols="72">-- GNU Dr. Geo <a class="moz-txt-link-freetext" href="http://drgeo.eu">http://drgeo.eu</a> <a class="moz-txt-link-freetext" href="http://blog.drgeo.eu">http://blog.drgeo.eu</a></pre> </body> </html>