First load the configuration: Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfSeaside'; load. Then pick the Seaside variant you want to load: "Seaside 2.8" ConfigurationOfSeaside project latestVersion load: 'Seaside 2.8'. ConfigurationOfSeaside project latestVersion load: 'Seaside 2.8 Examples'. ConfigurationOfSeaside project latestVersion load: 'Magritte'. ConfigurationOfSeaside project latestVersion load: 'Magritte Tests'. ConfigurationOfSeaside project latestVersion load: 'Pier'. ConfigurationOfSeaside project latestVersion load: 'Pier Tests'. ConfigurationOfSeaside project latestVersion load: 'Pier AddOns'. "Seaside 3.0" ConfigurationOfSeaside project latestVersion load: 'Seaside 3.0'. ConfigurationOfSeaside project latestVersion load: 'Seaside 3.0 Tests'. ConfigurationOfSeaside project latestVersion load: 'Magritte2'. ConfigurationOfSeaside project latestVersion load: 'Magritte2 Tests'. ConfigurationOfSeaside project latestVersion load: 'Pier2'. ConfigurationOfSeaside project latestVersion load: 'Pier2 Tests'. ConfigurationOfSeaside project latestVersion load: 'Pier2 AddOns'. I've tested the various loads with PharoCore-1.0-10508rc2. Should work fine in Dev variants as well... Dale