No handler for multi_field error

[rohitnick]

Getting the below error on running rake spree_elasticsearch:load_products

Elasticsearch::Transport::Transport::Errors::BadRequest: [400] {"error":{"root_cause":[{"type":"mapper_parsing_exception","reason":"No handler for type [multi_field] declared on field [name]"}],"type":"mapper_parsing_exception","reason":"Failed to parse mapping [spree_product]: No handler for type [multi_field] declared on field [name]","caused_by":{"type":"mapper_parsing_exception","reason":"No handler for type [multi_field] declared on field [name]"}},"status":400}