At nuget.org
https://www.nuget.org/packages/Elasticsearch.Net.Connection.Thrift/
We can see dependency from package NetReflector.
I can found only one line of code that use it
https://github.com/elasticsearch/elasticsearch-net/blob/213eb1a130712af5b821af3062b984ffccd22fdc/src/Connections/Elasticsearch.Net.Connection.Thrift/Transport/TSocketSettings.cs#L5
Class TSocketSettings marked with attribute 'Exortech.NetReflector.ReflectorTypeAttribute'
I can't found any logic that retrieves this attribute and do something with it.
If this attribute not used anymore, please remove it and remove unused nuget dependency.