Hello, I've trying to play around with Roassal so I load a csv. Code by far is here: |csv mbfs cont| mbfs := FileStream fileNamed: 'C:\Users\kusr\Documents\vis\test1utf8_cut2.csv'. mbfs lineEndConvention: #crlf; converter: UTF8TextConverter new. cont := mbfs contents. In the contents message the following happens: Array(Object)>>primitiveFailed: Array(Object)>>primitiveFailed Array>>elementsForwardIdentityTo: ByteString(Object)>>becomeForward: ByteString>>at:put: MultiByteFileStream>>next: MultiByteFileStream(FileStream)>>contents UndefinedObject>>DoIt OpalCompiler>>evaluate RubSmalltalkEditor>>evaluate:andDo: RubSmalltalkEditor>>highlightEvaluateAndDo: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] in [ textMorph textArea handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] ] in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: in Block: [ textMorph textArea editor highlightEvaluateAndDo...etc... RubEditingArea(RubAbstractTextArea)>>handleEdit: [ textMorph textArea handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] ] in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: in Block: [ textMorph textArea... WorldState>>runStepMethodsIn: WorldMorph>>runStepMethods WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: WorldState>>doOneSubCycleFor: WorldMorph>>doOneSubCycle MenuMorph>>invokeModalAt:in:allowKeyboard: MenuMorph>>invokeModal: MenuMorph>>invokeModal [ :menu | menu setInvokingView: self editor. menu invokeModal. self changed. ^ true ] in RubEditingArea(RubAbstractTextArea)>>yellowButtonActivity: in Block: [ :menu | ... MenuMorph(Object)>>ifNotNilDo: RubEditingArea(RubAbstractTextArea)>>yellowButtonActivity: RubEditingArea(RubAbstractTextArea)>>mouseDown: RubEditingArea(Morph)>>handleMouseDown: MouseButtonEvent>>sentTo: RubEditingArea(Morph)>>handleEvent: HERE: (ByteString at:put:) ... aCharacter isOctetCharacter ifFalse:[ "Convert to WideString" self becomeForward: (WideString from: self). ^self at: index put: aCharacter. ... Image is moose_suite_6_0 on windows. What should I do? What is frightening that I linked file and SOMETIMES it raises the error above and sometimes not... ??? (zip file with sample csv...) https://drive.google.com/file/d/0B0JASZM9_9QqX19JZElwMVVXWjA/view?usp=sharin... thanks Robert