{"record":{"id":"d39527694c926cf8","repo":"istio/istio","slug":"unable-to-match-a-printer-suitable-for-the-output","errorCode":null,"errorMessage":"unable to match a printer suitable for the output format %s, allowed formats are: json,yaml,short","messagePattern":"unable to match a printer suitable for the output format (.+?), allowed formats are: json,yaml,short","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"istioctl/pkg/proxyconfig/proxyconfig.go","lineNumber":207,"sourceCode":"\nfunc setupConfigdumpEnvoyConfigWriter(debug []byte, out io.Writer) (*configdump.ConfigWriter, error) {\n\tcw := &configdump.ConfigWriter{Stdout: out}\n\terr := cw.Prime(debug)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\treturn cw, nil\n}\n\nfunc setupEnvoyClusterStatsConfig(kubeClient kube.CLIClient, podName, podNamespace string, outputFormat string) (string, error) {\n\tpath := \"clusters\"\n\tswitch outputFormat {\n\tcase \"\", summaryOutput:\n\tcase jsonOutput, yamlOutput:\n\t\t// for yaml output we will convert the json to yaml when printed\n\t\tpath += \"?format=json\"\n\tdefault:\n\t\treturn \"\", fmt.Errorf(\"unable to match a printer suitable for the output format %s, allowed formats are: json,yaml,short\", outputFormat)\n\t}\n\tresult, err := kubeClient.EnvoyDoWithPort(context.TODO(), podName, podNamespace, \"GET\", path, proxyAdminPort)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"failed to execute command on Envoy: %v\", err)\n\t}\n\treturn string(result), nil\n}\n\nfunc setupEnvoyServerStatsConfig(kubeClient kube.CLIClient, podName, podNamespace string, outputFormat string) (string, error) {\n\tpath := \"stats\"\n\tswitch outputFormat {\n\tcase \"\", summaryOutput:\n\tcase jsonOutput, yamlOutput:\n\t\t// for yaml output we will convert the json to yaml when printed\n\t\tpath += \"?format=json\"\n\tcase prometheusOutput:\n\t\tpath += \"/prometheus\"\n\tcase prometheusMergedOutput:","sourceCodeStart":189,"sourceCodeEnd":225,"githubUrl":"https://github.com/istio/istio/blob/8dc789c5cf17517c64e3c36cb3288230f149dfae/istioctl/pkg/proxyconfig/proxyconfig.go#L189-L225","documentation":"Error \"unable to match a printer suitable for the output format %s, allowed formats are: json,yaml,short\" thrown in istio/istio.","triggerScenarios":"Thrown at istioctl/pkg/proxyconfig/proxyconfig.go:207 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":"8dc789c5cf17517c64e3c36cb3288230f149dfae","analyzedAt":"2026-08-15T15:16:55.434Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}