I bought "Agile Artificial Intelligence in Pharo" and am using Pharo 8.0 64-bit. In the book it says you can download the source using: Metacello new baseline: 'AgileArtificialIntelligence'; repository: 'github://Apress/agile-ai-in-pharo/src'; load. Then it times out with:"MCSmalltalkhubRepository(MCRepository)>>error:" self Could not load Athens-SVG-PeterUhnak.17.mcz:ZnHttpUnsuccessful: 503 Service Temporarily Unavailable I am fairly new to Pharo and run into problems with documentation being old, for example, Pharo By Example. I realize it is difficult to keep books updated with the many changes in an active project. I'm fine with that. However, how can a just published book have the source listed in its pages, but then not have it available?