Errors when using spring-data-elasticsearch version 3.0.0.BUILD-SNAPSHOT and Elasticsearch 5.4.0

I'm afraid I don't have the answer. To me it's more something you should ask on the spring data mailing list.

BTW you are not alone:

I'm planning to play around Spring Data ES integration this summer but for now I have little experience with it (well almost no experience).

Anyway, thanks a lot for the full repository example. I know it's a lot of efforts doing so.