# C# Nest Serialization of GeoShapeBase **URL:** \ **Category:** Elasticsearch\ **Created:** [December 31, 2016, 2:00am UTC](https://discuss.elastic.co/t/c-nest-serialization-of-geoshapebase/70307 "2016-12-31T02:00:53Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![MatthewHartz](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@MatthewHartz](https://discuss.elastic.co/u/MatthewHartz)\ **Post date:** [December 31, 2016, 2:00am UTC](https://discuss.elastic.co/t/c-nest-serialization-of-geoshapebase/70307/1 "2016-12-31T02:00:53Z")
Hi, I'm trying to do a search and return the a object containing a geocircleshape across a service in Azure service fabric. I am receivine the error: "Type 'Nest.GeoShapeBase' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. If the type is a collection, consider marking it with the CollectionDataContractAttribute. See the Microsoft .NET Framework documentation for other supported types." I've tried adding the DataMember attribute to my "List\" and I still receive the same error. It seems to be an issue at the Nest level. Any ideas? Thanks! ---
**Author:** ![MatthewHartz](https://avatars.discourse-cdn.com/v4/letter/m/e47774/32.png) [@MatthewHartz](https://discuss.elastic.co/u/MatthewHartz)\ **Post date:** [January 3, 2017, 6:11am UTC](https://discuss.elastic.co/t/c-nest-serialization-of-geoshapebase/70307/2 "2017-01-03T06:11:44Z")
bump 🙂 ---
**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\ **Post date:** [January 5, 2017, 9:51am UTC](https://discuss.elastic.co/t/c-nest-serialization-of-geoshapebase/70307/3 "2017-01-05T09:51:35Z")
Hi, I'm closing this topic now as you've already created a [Github issue](https://github.com/elastic/elasticsearch-net/issues/2524) for that so let's keep the discussion there. Daniel ---
**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\ **Post date:** [January 5, 2017, 9:51am UTC](https://discuss.elastic.co/t/c-nest-serialization-of-geoshapebase/70307/4 "2017-01-05T09:51:42Z")