Hello @Flof , I know it's old issue but unfortunally I'm working on it now and I didn't find any solution for it. 😞 I use Maven in my project but in the code wrote by you I don't find the exclusion from elasticsearch-spark. In any case the problem It seems is linked from some conflict between httpcomponents libraries. It seems like the problem is in library that contains it: elasticsearch-rest-high-level-client  I'm trying different solutions but the error persist.   If you can remember something let me know. Thanks a lot ... View more