when I do this thiproc := OSProcess thisOSProcess . I get this Association(Object)>>doesNotUnderstand: #emitStore: OCLiteralVariable>>emitStore: OCASTTranslatorForValue(OCASTTranslator)>>visitAssignmentNode: RBAssignmentNode>>acceptVisitor: OCASTTranslatorForValue(RBProgramNodeVisitor)>>visitNode: OCASTTranslatorForValue(OCASTTranslator)>>visitNode: OCASTTranslatorForEffect(OCASTTranslator)>>visitReturnNode: RBReturnNode>>acceptVisitor: OCASTTranslatorForEffect(RBProgramNodeVisitor)>>visitNode: OCASTTranslatorForEffect(OCASTTranslator)>>visitNode: [ :each | self visitNode: each ] in OCASTTranslatorForEffect>>visitSequenceNode: in Block: [ :each | self visitNode: each ] Array(SequenceableCollection)>>do: OCASTTranslatorForEffect>>visitSequenceNode: RBSequenceNode>>acceptVisitor: OCASTTranslatorForEffect(RBProgramNodeVisitor)>>visitNode: OCASTTranslatorForEffect(OCASTTranslator)>>visitNode: OCASTTranslator>>visitMethodNode: RBMethodNode>>acceptVisitor: OCASTTranslator(RBProgramNodeVisitor)>>visitNode: OCASTTranslator>>visitNode: RBMethodNode>>generateIR RBMethodNode>>generate: [ [ ast := self parse. self doSemanticAnalysis ] on: OCSourceCodeChanged do: [ :notification | self source: notification newSourceCode. notification retry ]. cm := ast generate: self compilationContext compiledMethodTrailer ] in OpalCompiler>>compile in Block: [ ... BlockClosure>>on:do: OpalCompiler>>compile [ self compile ] in OpalCompiler>>translate in Block: [ self compile ] BlockClosure>>on:do: OpalCompiler>>translate OpalCompiler>>evaluate SmalltalkEditor>>evaluateSelectionAndDo: Do I do something wrong ? I can inspect the object just fine.