# A lot of confusing error messages with ES 5.0.0 and NPM elasticsearch 12.0.1 **URL:** \ **Category:** Elasticsearch\ **Created:** [November 3, 2016, 3:17pm UTC](https://discuss.elastic.co/t/a-lot-of-confusing-error-messages-with-es-5-0-0-and-npm-elasticsearch-12-0-1/64893 "2016-11-03T15:17:21Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![tmundt](https://avatars.discourse-cdn.com/v4/letter/t/b5a626/32.png) [@tmundt](https://discuss.elastic.co/u/tmundt)\ **Post date:** [November 3, 2016, 3:17pm UTC](https://discuss.elastic.co/t/a-lot-of-confusing-error-messages-with-es-5-0-0-and-npm-elasticsearch-12-0-1/64893/1 "2016-11-03T15:17:21Z")
Hello, I am getting a lot of error messages, saying that I cannot bulk update an unexisting index (stacktrace: [2016-11-03T16:41:47,534][WARN][o.e.a.b.TransportShardBulkAction] [muth\_01\_dev] unexpected error during the primary phase for action [indices:data/write/bulk[s]], request [BulkShardRequest to [coresystems\_core01] containing [41] requests] org.elasticsearch.index.IndexNotFoundException: no such index) or that I cannot change a mapping (error message: [2016-11-03T16:41:46,686][DEBUG][o.e.a.a.i.m.p.TransportPutMappingAction] [muth\_01\_dev] failed to put mappings on indices [[[coresystems\_core01/z5unTqyiTkeZVx7B-Zh1ZA]]], type [supporters] java.lang.IllegalArgumentException: object mapping [problemsSolved] can't be changed from non-nested to nested) When I check my mappings and data, everything seems to be ok. When I use the older ES 2.4.1 version I do not get those error messages. Yours, Tom ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 10:06pm UTC](https://discuss.elastic.co/t/a-lot-of-confusing-error-messages-with-es-5-0-0-and-npm-elasticsearch-12-0-1/64893/2 "2017-07-05T22:06:53Z")