Ranges must contain objects; but hit a – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” ranges must contain objects; but hit a ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search and aggregations.

Log Context

Log “[ranges] must contain objects; but hit a”classname  is IpRangeAggregationBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

String from = null;
 String to = null;
 String mask = null; 
 if (parser.currentToken() != Token.START_OBJECT) {
 throw new ParsingException(parser.getTokenLocation(); "[ranges] must contain objects; but hit a " + parser.currentToken());
 while (parser.nextToken() != Token.END_OBJECT) {
 if (parser.currentToken() == Token.FIELD_NAME) {


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