Sebastian, FileTree is already integrated in Pharo3 and has probably diverged a bit from Dale FileTree repository, so you don't have to reload it (shouldn't). Thierry ________________________________ De : Pharo-dev [pharo-dev-bounces@lists.pharo.org] de la part de Sebastian Sastre [sebastian@flowingconcept.com] Envoyé : mardi 8 juillet 2014 01:19 à : Pharo Development List Objet : Re: [Pharo-dev] Workaround monticello issue Hi Thierry, is a Pharo3.0 Latest update: #30851 with Gofer new url: 'http://ss3.gemstone.com/ss/FileTree'; package: 'ConfigurationOfFileTree'; load. ((Smalltalk at: #ConfigurationOfFileTree) project version: #'stable') load. in it thanks for taking a look! On Jul 7, 2014, at 6:18 PM, GOUBIER Thierry <thierry.goubier@cea.fr<mailto:thierry.goubier@cea.fr>> wrote: Hi Sebastian, which version are you using? I looked into 3.0 and 4.0, and there is nothing there about setting packageList to nil in MCFileRepositoryInspector. Thierry ________________________________ De : Pharo-dev [pharo-dev-bounces@lists.pharo.org<mailto:pharo-dev-bounces@lists.pharo.org>] de la part de Sebastian Sastre [sebastian@flowingconcept.com<mailto:sebastian@flowingconcept.com>] Envoyé : lundi 7 juillet 2014 22:45 à : Pharo Development List Objet : [Pharo-dev] Workaround monticello issue Hi there, Iâve just hit an issue that prevented to open packages in monticello MessageNotUnderstood: receiver of "indexOf:" is nil UndefinedObject(Object)>>doesNotUnderstand: #indexOf: MCFileRepositoryInspector>>packageSelection PluggableListMorph>>getCurrentSelectionIndex PluggableListMorph>>updateList PluggableListMorph>>update: MCFileRepositoryInspector(Object)>>changed: in Block: [ :aDependent | aDependent update: aParameter ] DependentsArray>>do: MCFileRepositoryInspector(Object)>>changed: MCFileRepositoryInspector>>refresh MCFileRepositoryInspector>>setRepository:workingCopy: in Block: [ ... BlockClosure>>newProcess in Block: [ ... This is what Iâm using as hacky workaround: MCFileRepositoryInspector>>packageSelection ^ self packageList isNil ifTrue:[ 1 ] ifFalse:[ self packageList indexOf: selectedPackage ] The problem is that packageList is nil for some reason. Looks like filetree is involved since 1. Iâm using it and 2. it sets an extension method #refresh that makes packageList := nil sebastian<https://about.me/sebastianconcept> o/ blog: http://sebastianconcept.com<http://sebastianconcept.com/> LinkedIn: http://www.linkedin.com/in/sebastiansastre github: https://github.com/sebastianconcept