Take a PharoCore 10508, update it with update stream to 10514. open a workspace and evaluate: Gofer it squeaksource: 'MetacelloRepository'; project: 'ConfigurationOfRFB'; load. Then ConfigurationOfRFB project latestVersion load It shows an error: Unable to resolve ConfigurationOfMetacello in method GoferPackageReference>>resolverWith: Installed packages: Gofer-Core-MarkusDenker.117 Gofer-Tests-MarkusDenker.116 ConfigurationOfRFB-tbn.4 Same happens with: Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfMagma'; load. ((Smalltalk at: #ConfigurationOfMagma) project version: '1.0r43') load: 'Tester' If I manually install Metacello (not bootstraped from gofer): Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfMetacello'; load. I got: ConfigurationOfMetacello-DaleHenrichs.194. If I run now the -- Miguel Cobá http://miguel.leugim.com.mx