Hello, As mentioned before, there´s a problem with CatalobBrawser in Pharo 8. Basically the message: createRepositoryURLtoNameMappings "Return a mapping between repositories URLs and their user names" <script: 'self createRepositoryURLtoNameMappings inspect'> |repos| repos := Dictionary new. 3 to: SystemVersion current major do: [:v | repos at: ('http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo{1}0/main' format: v asArray) put: ('Pharo{1}.0' format: v asArray)]. repos at: 'http://www.squeaksource.com/MetacelloRepository' put: 'Unsorted'. ^repos Must be fixed so it goes to: createRepositoryURLtoNameMappings "Return a mapping between repositories URLs and their user names" <script: 'self createRepositoryURLtoNameMappings inspect'> |repos| repos := Dictionary new. 3 to: SystemVersion current major do: [:v | repos at: ('http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo{1}0/main' format: (Array with: v)) put: ('Pharo{1}.0' format: (Array with: v))]. repos at: 'http://www.squeaksource.com/MetacelloRepository' put: 'Unsorted'. ^repos Or something like it without the use of asArray. I was asked to report the bug in github, but I´m not sure where. Thanx, Casimiro Barreto