No handler for type [string] declared on field [name]

Question

When type is declared as string, Elasticsearch 6.0 will show this error.

"name" => [
  "type" => "string",
  "analyzer" => "ik_max_word"
]

Solution

Elasticsearch has dropped the string type and is now using text. So your code should be something like this

"name" => [
  "type" => "text",
  "analyzer" => "ik_max_word"
]

Comments

[mmike]

Also if you have error with :uuid, than change 'string' to 'keyword'.