Yes, it's caused by preferences referencing obsolete classes. Change Preferences class >> removePreference: aSymbol "Remove all memory of the given preference symbol." self dictionaryOfPreferences removeKey: aSymbol ifAbsent: []. Parameters removeKey: aSymbol ifAbsent: []. (Parameters at: #PersonalDictionaryOfPreferences ifAbsent: []) ifNotNil: [:personalDict | personalDict removeKey: aSymbol ifAbsent: []] Then evaluate: Preferences removePreference: #automaticFlapLayout; removePreference: #navigatorOnLeftEdge; removePreference: #classicNavigatorEnabled. And you should be able to save. Cheers, Henry On Nov 23, 2009, at 4:46 17PM, Henrik Jegbjerg Hansen wrote:
Saving preferences to disk gives an error in latest pharo core. I am on Ubuntu Linux with the latest VM.
Any ideas how to fix this?
-- Henrik Jegbjerg Hansen
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