Elasticsearch NEST MultiSearch ArgumentNullException

Question

当我尝试使用NEST文档中一个非常简单的MultiSearch操作符示例时：

var request = new MultiSearchRequest
            {
                Operations = new Dictionary<string, ISearchRequest>
                {
                    { "esproj", new SearchRequest 
                        { 
                            Query = new QueryContainer(new MatchAllQuery()) 
                        } 
                    },
                    { "people", new SearchRequest 
                        { 
                            Query = new QueryContainer(new MatchAllQuery()) 
                        } 
                    }
                }
            };

var result = _client.MultiSearch(request);

然后，我有以下错误：

System.Reflection.RuntimeMethodInfo.MakeGenericMethod(Type[]阅读器中的用户代码HResult=-2147467261 Source=mscorlib StackTrace: in C:\code\elasticsearch-net\src\Nest\Resolvers\Converters\MultiSearchConverter.cs:row methodInstantiation)，Nest.Resolvers.Converters.MultiSearchConverter.ReadJson(JsonReader阅读器中的objectType类型，Object existingValue，JsonSerializer序列化程序)w C：\code\elasticsearch-net\src\Nest\Resolvers\Converters\MultiSearchConverter.cs:row 101，objectType类型，Object existingValue，W C:\code\elasticsearch-net\src\Nest\Resolvers\Converters\MultiSearchConverter.cs:row 78 in Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter转换器，JsonReader读取器，objectType类型，Object existingValue)在Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader读取器中，objectType类型，布尔型checkAdditionalContent)

但是，只有当我使用对象初始化器语法-当我使用流利语法时：

var result2 = _client.MultiSearch(ms => ms
                .Search<MyClass>("esproj", s => s.MatchAll())
                .Search<MyClass>("people", s => s.MatchAll())
            );

一切都很好(我得到了结果)。我的Nest客户端版本是1.4.2。我做错了什么？

Answer 1

这绝对是个窃听器。刚刚打开https://github.com/elastic/elasticsearch-net/issues/127，并将在下一个版本中解决这个问题。