Hi, I have a very simple Baseline: baselineOf: spec <baseline> spec for: #common do: [ spec baseline: 'NeoJSON' with: [ spec repository: 'github://svenvc/NeoJSON:master/repository' ]. spec baseline: 'P3' with: [ spec repository: 'github://svenvc/P3' ]. spec package: 'Pre-Checkin-Database' with: [ spec requires: #('NeoJSON' 'P3') ]. ] The Baseline file is in: C:\Program Files (x86)\Pharo\pharo-local\pre-checkin\booking-addons\Pre-Checkin\BaselineOfPreCheckinDatabase Also in Development Image the following answer an empty collection: MetacelloToolBox validateBaseline: BaselineOfPreCheckinDatabase. But in a Fresh Image the following evaluation answer an error: Metacello new repository: 'tonel://C:\Program Files (x86)\Pharo\pharo-local\pre-checkin\booking-addons\Pre-Checkin\'; baseline: 'PreCheckinDatabase'; onLock: [ :ex | ex honor ]; load. Any idea what is wrong ? Never worked with Tonel before but fore sure something similar works fine with filetree. Stack: ByteString(Object)>>doesNotUnderstand: #resolve: FileLocator>>resolve FileLocator(AbstractFileReference)>>fileSystem FileLocator(AbstractFileReference)>>/ IceLibgitRepository class>>localRepositoriesLocation IceLibgitRepository class>>repositoriesLocation IceRepositoryCreator>>defaultLocation IceRepositoryCreator>>locationToUse IceRepositoryCreator>>validateNotDuplicated IceRepositoryCreator>>validate [ self validate. self isCloning ifTrue: [ self cloneRepository ] ifFalse: [ self addLocalRepository ] ] in IceRepositoryCreator>>createRepository in Block: [ self validate.... BlockClosure>>on:do: IceRepositoryCreator>>createRepository [ repository := builder createRepository ] in MCGitHubRepository(MCGitBasedNetworkRepository)>>createIcebergRepositoryFor: in Block: [ repository := builder createRepository ] BlockClosure>>on:do: MCGitHubRepository(MCGitBasedNetworkRepository)>>createIcebergRepositoryFor: [ ^ self createIcebergRepositoryFor: urlToUse ] in MCGitHubRepository(MCGitBasedNetworkRepository)>>createIcebergRepositoryWithFallbackFor:url: in Block: [ ^ self createIcebergRepositoryFor: urlToUse ] BlockClosure>>on:do: MCGitHubRepository(MCGitBasedNetworkRepository)>>createIcebergRepositoryWithFallbackFor:url: [ | remote | remote := IceGitRemote url: remoteUrl. self createIcebergRepositoryWithFallbackFor: remote url: remoteUrl ] in MCGitHubRepository(MCGitBasedNetworkRepository)>>getOrCreateIcebergRepository in Block: [ | remote |... OrderedCollection(Collection)>>detect:ifFound:ifNone: OrderedCollection(Collection)>>detect:ifNone: MCGitHubRepository(MCGitBasedNetworkRepository)>>getOrCreateIcebergRepository IceGithubRepositoryType>>mcRepository Iceberg class>>mcRepositoryFor: IceMetacelloPharoPlatform>>createRepository: MetacelloMCBaselineProject(MetacelloMCProject)>>createRepository: MetacelloRepositorySpec>>createRepository [ aSpec createRepository ] in [ :aSpec | | description repo | description := aSpec description. (repo := repositories detect: [ :rep | rep description = description ] ifNone: [ aSpec createRepository ]) ~~ nil ifTrue: [ repos add: repo ] ] in MetacelloEnsureFetchingMCSpecLoader(MetacelloCommonMCSpecLoader)>>repositoriesFrom:ignoreOverrides: in Block: [ aSpec createRepository ] Array(Collection)>>detect:ifFound:ifNone: -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html