Hi -- opening the latest version of Pharo (build #20134) throws an error when trying to open the startup script (which I don't have). Maybe an empty Pharo-2.0.st should be included in the Pharo-2.0.zip? Cheers, Francisco PS: let me know if I should report this with a bug entry. a CommandLineArguments '/builds/jenkins/workspace/Pharo-2.0/Pharo-2.0/Pharo-2.0.st' '-headless' MultiByteFileStream(Object)>>primitiveFailed MultiByteFileStream(StandardFileStream)>>primClose: MultiByteFileStream(StandardFileStream)>>close [stream close] in FileReference>>readStreamDo: MethodContext(ContextPart)>>resume:through: BlockClosure>>ensure: FileReference>>readStreamDo: BasicCodeLoader>>installSourceFile: [:reference | self installSourceFile: reference] in [sourceFiles do: [:reference | self installSourceFile: reference]] in BasicCodeLoader>>installSourceFiles OrderedCollection>>do: [sourceFiles do: [:reference | self installSourceFile: reference]] in BasicCodeLoader>>installSourceFiles BlockClosure>>ensure: BasicCodeLoader>>installSourceFiles BasicCodeLoader>>activate BasicCodeLoader class(CommandLineHandler class)>>activateWith: DefaultCommandLineHandler>>handleSubcommand DefaultCommandLineHandler>>handleArgument: DefaultCommandLineHandler>>activate [self new activate] in DefaultCommandLineHandler class>>startUp: BlockClosure>>cull: [each cull: resuming] in [:each | self logStartUpErrorDuring: [each cull: resuming] into: errors tryDebugger: self isInteractive] in SmalltalkImage>>executeDeferredStartupActions: BlockClosure>>on:do: SmalltalkImage>>logStartUpErrorDuring:into:tryDebugger: [:each | self logStartUpErrorDuring: [each cull: resuming] into: errors tryDebugger: self isInteractive] in SmalltalkImage>>executeDeferredStartupActions: OrderedCollection>>do: SmalltalkImage>>executeDeferredStartupActions: SmalltalkImage>>startupImage:snapshotWorked: SmalltalkImage>>snapshot:andQuit: