# Strange error serialising **URL:** \ **Category:** Elasticsearch\ **Created:** [February 8, 2013, 3:51pm UTC](https://discuss.elastic.co/t/strange-error-serialising/10669 "2013-02-08T15:51:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![andrea\_crotti](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@andrea\_crotti](https://discuss.elastic.co/u/andrea_crotti)\ **Post date:** [February 8, 2013, 3:51pm UTC](https://discuss.elastic.co/t/strange-error-serialising/10669/1 "2013-02-08T15:51:06Z")
I have many entries from one couch database that are not getting indexed, and the error is quite cryptic: [0]: index [wk-wazoku-wazoku-com], type [wk-wazoku-wazoku-com], id [d400f7af5a9b443ba368076b2c07112d], message [MapperParsingException[object mapping [pivotal] trying to serialize a value with no field associated with it, current value [pt\_40999433]]] Any idea of what that actually means? Looking at the doc there is nothing strange about that, just a simple key and value.. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:52am UTC](https://discuss.elastic.co/t/strange-error-serialising/10669/2 "2017-07-06T02:52:22Z")