Hi, just added ConfigurationOfAlien to the MetacelloRepository. To load Alien using Metacello configurations evaluate Gofer new url: 'http://www.squeaksource.com/MetacelloRepository' ; package: 'ConfigurationOfAlien'; load. (ConfigurationOfAlien project version:'1.0') load. ( John please update the ALIEN squeaksource page with the previous text ) Note: Using the available MAC VM i the pharo page, you should be able to run the test correctly. ( the alien plugin 'IA32ABI 7 May 2009 (e)', is compiled inside that vm, there's no need for the external one) Metacello question: If i want load Alien Examples, the package Alien-MacOSExamples, but don't want to add them to the above configuration , should i create a new #versionXXX method ? Or provide a class side method like for example ConfigurationOfAlien>>loadWithMaxOsExamples (ConfigurationOfAlien project version:'1.0') load:#('Alien-MacOsExamples') Saludos, Fernando