Using ElasticSearch API in node.js, after installing dependency and run the node.js app cause the below error. Help me to solve this

Elasticsearch ERROR: 2017-04-11T04:40:01Z Error: Request error, retrying POST http://localhost:9200/reports/report/_search?size=5000000 => connect ECONNREFUSED 127.0.0.1:9200 at Log.error (/home/kartik/Documents/Project/Validus/validus_reports_server/node_modules/elasticsearch/src/lib/log.js:225:56) at checkRespForFailure (/home/kartik/Documents/Project/Validus/validus_reports_server/node_modules/elasticsearch/src/lib/transport.js:240:18) at HttpConnector. (/home/kartik/Documents/Project/Validus/validus_reports_server/node_modules/elasticsearch/src/lib/connectors/http.js:162:7) at ClientRequest.wrapper (/home/kartik/Documents/Project/Validus/validus_reports_server/node_modules/lodash/lodash.js:4968:19) at emitOne (events.js:77:13) at ClientRequest.emit (events.js:169:7) at Socket.socketErrorListener (_http_client.js:258:9) at emitOne (events.js:77:13) at Socket.emit (events.js:169:7) at emitErrorNT (net.js:1256:8)

{ [Error: No Living connections] message: 'No Living connections', body: undefined, status: undefined }

via Kartik Raja S