{"record":{"id":"f90d20d3ace3e0a6","repo":"grafana/k6","slug":"encountered-an-error-while-interpreting-parser-opt","errorCode":null,"errorMessage":"encountered an error while interpreting Parser options; reason: %w","messagePattern":"encountered an error while interpreting Parser options; reason: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/js/modules/k6/experimental/csv/module.go","lineNumber":181,"sourceCode":"\tif common.IsNullish(fileArg) {\n\t\tcommon.Throw(rt, fmt.Errorf(\"csv Parser constructor takes at least one non-nil source argument\"))\n\t}\n\n\t// 1. Make sure the Sobek object is a fs.File (Sobek operation)\n\tvar file fs.File\n\tif err := mi.vu.Runtime().ExportTo(fileArg, &file); err != nil {\n\t\tcommon.Throw(\n\t\t\tmi.vu.Runtime(),\n\t\t\tfmt.Errorf(\"first argument expected to be a fs.File instance, got %T instead\", call.Argument(0)),\n\t\t)\n\t}\n\n\toptions := newDefaultParserOptions()\n\tif len(call.Arguments) == 2 && !sobek.IsUndefined(call.Argument(1)) {\n\t\tvar err error\n\t\toptions, err = newParserOptionsFrom(call.Argument(1).ToObject(rt))\n\t\tif err != nil {\n\t\t\tcommon.Throw(rt, fmt.Errorf(\"encountered an error while interpreting Parser options; reason: %w\", err))\n\t\t}\n\t}\n\n\t// Instantiate and configure a csv reader using the provided file and options\n\tr, err := NewReaderFrom(file.ReadSeekStater, options)\n\tif err != nil {\n\t\tcommon.Throw(rt, fmt.Errorf(\"failed to create a new parser; reason: %w\", err))\n\t}\n\n\t// Create a new Parser instance\n\tparser := Parser{\n\t\treader:  r,\n\t\toptions: options,\n\t\tvu:      mi.vu,\n\t}\n\n\treturn rt.ToValue(&parser).ToObject(rt)\n}","sourceCodeStart":163,"sourceCodeEnd":199,"githubUrl":"https://github.com/grafana/k6/blob/93accf6570dcd306ca5e99cc44c393ee3797761b/internal/js/modules/k6/experimental/csv/module.go#L163-L199","documentation":"Error \"encountered an error while interpreting Parser options; reason: %w\" thrown in grafana/k6.","triggerScenarios":"Thrown at internal/js/modules/k6/experimental/csv/module.go:181 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"93accf6570dcd306ca5e99cc44c393ee3797761b","analyzedAt":"2026-08-15T21:23:27.118Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}