使用Cloudformation添加RDS参数组

Question

我正在尝试将参数添加到参数组-slow-query-utf8mb4-support。 但是我得到Invalid template property or properties [RDSDBParameterGroup]

  Type: "AWS::RDS::DBParameterGroup"
  Properties:
    Description: "Adding Slow Query Log and Changes for utf8mb4 support"
    Family: aurora5.6
    DBParameterGroupName: slow-query-utf8mb4-support
    Parameters:
      innodb_file_format: Barracuda
      Source: user

错误： Invalid template property or properties [RDSDBParameterGroup]