title: Elasticsearch 6: Rejecting mapping update as the final mapping would have more than 1 type
body: <p>I'm trying to convert a project to use the latest Elasticsearch 6 and am having this problem. I don't know if the problem is "Product" vs "product". In my mappings and attributes I specify "products", so I am not sure why I get this error when I try to index a product.</p>
  
  <p>Error:</p>
  
  <blockquote>
    <p>Invalid NEST response built from a unsuccessful low level call on PUT:
    /products/products/1?pretty=true&amp;error_trace=true</p>
    
    <p>"Rejecting mapping update to [products] as the final mapping would
    have more than 1 type: [Product, products]"</p>
  </blockquote>
  
  <p>Request:</p>
  
  <pre><code>{
    "id": 1,
    "warehouseId": 0,
    "productStatus": 1,
    "sku": "102377",
    "name": "Name",
    "shortDescription": "Description",
    "longDescription": "Description",
    "price": 37.3200
  }
  </code></pre>
  
  <p>My code:</p>
  
  <pre><code>    [ElasticsearchType(Name = "products")]
      public class Product : BaseEntity
      {
          [Key]
          public int Id { get; set; }
          public int WarehouseId { get; set; }
          [Display(Name = "Product Status")]
          public Enums.ProductStatus ProductStatus { get; set; }
          [Required, StringLength(10)]
          public string Sku { get; set; }
          [Required, StringLength(200)]
          public string Name { get; set; }
          [StringLength(500), Display(Name = "Short Description")]
          public string ShortDescription { get; set; }
          [DataType(DataType.MultilineText), Display(Name = "Long Description")]
          public string LongDescription { get; set; }
          [Column(TypeName ="Money")]            
          public Nullable&lt;decimal&gt; Price { get; set; }
      }
  
  connection.DefaultMappingFor&lt;Product&gt;(m =&gt; m.IndexName("products"));
  </code></pre>