results in MapperParsingException[Analyzer [techTermPreservingFilterAnalyzer] not found for field [jobtitle]]

job titles test

curl -XPUT 'localhost:9200/jt/' -d '                  
{
    "settings": {
	"index": {
	    "number_of_shards":5,
	    "number_of_replicas":0
	}
    }
}
'                
                
curl -XPUT 'localhost:9200/jt/_settings' -d '                  
{
  "analysis": {
    "filter": {
      "techTermPreservingFilter": {
        "protected_words": [
          "c++",
          ".net",
          "c#"
        ],
        "type": "word_delimiter"
      }
    },
    "analyzer": {
      "techTermPreservingFilterAnalyzer": {
        "filter": [
          "lowercase",
          "techTermPreservingFilter"
        ],
        "type": "custom",
        "tokenizer": "whitespace"
      }
    }
  }
}
'

curl -XPUT 'localhost:9200/jt/jobtitles/_mapping' -d '                  
{ 
  "jobtitles": {
    "properties": {
      "id": { "type": "long" },
      "jobtitle": { "type": "string", "analyzer": "techTermPreservingFilterAnalyzer" }
    }
  }
}
'