{"record":{"id":"8cd8a4dc90275c97","repo":"puppetlabs/puppet","slug":"expected-an-array-of-string-got-a-klass","errorCode":null,"errorMessage":"Expected an Array of String, got a %{klass}","messagePattern":"Expected an Array of String, got a %(.+?)","errorType":"validation","errorClass":"ArgumentError","httpStatus":null,"severity":"error","filePath":"lib/puppet/settings/server_list_setting.rb","lineNumber":26,"sourceCode":"  def print(value)\n    if value.is_a?(Array)\n      # turn into a string\n      value.map { |item| item.join(\":\") }.join(\",\")\n    else\n      value\n    end\n  end\n\n  def munge(value)\n    servers = super\n    servers.map! { |server|\n      case server\n      when String\n        server.split(':')\n      when Array\n        server\n      else\n        raise ArgumentError, _(\"Expected an Array of String, got a %{klass}\") % { klass: value.class }\n      end\n    }\n  end\nend\n","sourceCodeStart":8,"sourceCodeEnd":31,"githubUrl":"https://github.com/puppetlabs/puppet/blob/e227c27540975c25aa22d533a52424a9d2fc886a/lib/puppet/settings/server_list_setting.rb#L8-L31","documentation":"Error \"Expected an Array of String, got a %{klass}\" thrown in puppetlabs/puppet.","triggerScenarios":"Thrown at lib/puppet/settings/server_list_setting.rb:26 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":"e227c27540975c25aa22d533a52424a9d2fc886a","analyzedAt":"2026-08-21T20:49:46.650Z","schemaVersion":2},"datasetVersion":"2026-08-21T23:17:16.201Z"}