{"record":{"id":"1d406e6a4dbc35f8","repo":"fluent/fluentd","slug":"self-name-default-value-specified-twice-for","errorCode":null,"errorMessage":"#{self.name}: default value specified twice for #{name}","messagePattern":"#(.+?): default value specified twice for #(.+?)","errorType":"exception","errorClass":"ArgumentError","httpStatus":null,"severity":"error","filePath":"lib/fluent/config/configure_proxy.rb","lineNumber":334,"sourceCode":"\n      def config_param(name, type = nil, **kwargs, &block)\n        name, block, opts = parameter_configuration(name, type, **kwargs, &block)\n\n        if @current_description\n          config_set_desc(name, @current_description)\n          @current_description = nil\n        end\n\n        @sections.delete(name)\n        @params[name] = [block, opts]\n        name\n      end\n\n      def config_set_default(name, defval)\n        name = name.to_sym\n\n        if @defaults.has_key?(name)\n          raise ArgumentError, \"#{self.name}: default value specified twice for #{name}\"\n        end\n\n        @defaults[name] = defval\n        nil\n      end\n\n      def config_set_desc(name, description)\n        name = name.to_sym\n\n        if @descriptions.has_key?(name)\n          raise ArgumentError, \"#{self.name}: description specified twice for #{name}\"\n        end\n\n        @descriptions[name] = description\n        nil\n      end\n\n      def desc(description)","sourceCodeStart":316,"sourceCodeEnd":352,"githubUrl":"https://github.com/fluent/fluentd/blob/dd45c6e18dc7be33b5e5a0f0767bf46307ff5626/lib/fluent/config/configure_proxy.rb#L316-L352","documentation":"Error \"#{self.name}: default value specified twice for #{name}\" thrown in fluent/fluentd.","triggerScenarios":"Thrown at lib/fluent/config/configure_proxy.rb:334 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":"dd45c6e18dc7be33b5e5a0f0767bf46307ff5626","analyzedAt":"2026-08-21T16:22:07.332Z","schemaVersion":2},"datasetVersion":"2026-08-21T18:17:14.833Z"}