{"record":{"id":"fdbea8c758ec6564","repo":"caddyserver/caddy","slug":"cannot-have-servers-global-options-with-duplicat","errorCode":null,"errorMessage":"cannot have 'servers' global options with duplicate listener addresses: %s","messagePattern":"cannot have 'servers' global options with duplicate listener addresses: (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"caddyconfig/httpcaddyfile/httptype.go","lineNumber":450,"sourceCode":"\t\t\t}\n\t\t\toptions[opt] = append(existingOpts, defaultBindOpts...)\n\t\t\tcontinue\n\t\t}\n\n\t\toptions[opt] = val\n\t}\n\n\t// If we got \"servers\" options, we'll sort them by their listener address\n\tif serverOpts, ok := options[\"servers\"].([]serverOptions); ok {\n\t\tsort.Slice(serverOpts, func(i, j int) bool {\n\t\t\treturn len(serverOpts[i].ListenerAddress) > len(serverOpts[j].ListenerAddress)\n\t\t})\n\n\t\t// Reject the config if there are duplicate listener address\n\t\tseen := make(map[string]bool)\n\t\tfor _, entry := range serverOpts {\n\t\t\tif _, alreadySeen := seen[entry.ListenerAddress]; alreadySeen {\n\t\t\t\treturn nil, fmt.Errorf(\"cannot have 'servers' global options with duplicate listener addresses: %s\", entry.ListenerAddress)\n\t\t\t}\n\t\t\tseen[entry.ListenerAddress] = true\n\t\t}\n\t}\n\n\treturn serverBlocks[1:], nil\n}\n\n// extractNamedRoutes pulls out any named route server blocks\n// so they don't get parsed as sites, and stores them in options\n// for later.\nfunc (ServerType) extractNamedRoutes(\n\tserverBlocks []serverBlock,\n\toptions map[string]any,\n\twarnings *[]caddyconfig.Warning,\n\treplacer ShorthandReplacer,\n) ([]serverBlock, error) {\n\tnamedRoutes := map[string]*caddyhttp.Route{}","sourceCodeStart":432,"sourceCodeEnd":468,"githubUrl":"https://github.com/caddyserver/caddy/blob/50e54ee279aa1e504fe218ca49ab6ae16c100410/caddyconfig/httpcaddyfile/httptype.go#L432-L468","documentation":"Error \"cannot have 'servers' global options with duplicate listener addresses: %s\" thrown in caddyserver/caddy.","triggerScenarios":"Thrown at caddyconfig/httpcaddyfile/httptype.go:450 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Remove the duplicate 'servers' global options block for that listener address, or merge the options into a single block."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"50e54ee279aa1e504fe218ca49ab6ae16c100410","analyzedAt":"2026-08-15T09:20:21.641Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}