i use fscrawler 2.6 and in kibana when i try to do GET bidata (bigdata is the name of my index created with the commande bin/fscrawler --config_dir ./test bigdata) it displays the folowing message 
#! Deprecation: [types removal] The parameter include_type_name should be explicitly specified in get indices requests to prepare for 7.0. In 7.0 include_type_name will default to 'false', which means responses will omit the type name in mapping definitions.
{
"error" : {
"root_cause" : [
{
"type" : "index_not_found_exception",
"reason" : "no such index",
"resource.type" : "index_or_alias",
"resource.id" : "bigdata",
"index_uuid" : "na",
"index" : "bigdata"
}
],
"type" : "index_not_found_exception",
"reason" : "no such index",
"resource.type" : "index_or_alias",
"resource.id" : "bigdata",
"index_uuid" : "na",
"index" : "bigdata"
},
"status" : 404
}