Ranges must contain objects but hit a – How to solve this OpenSearch exception

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch encounters a non-object type in a range query. This typically happens when the data type of the field being queried doesn’t match the expected object type. To resolve this, ensure that the field you’re querying is of the correct data type. If it’s not, you may need to reindex your data with the correct mapping. Alternatively, adjust your query to match the actual data type of the field. Also, check your query syntax to ensure it’s correctly structured.

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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 OpenSearch concepts: aggregations, search.

Log Context

Log “[ranges] must contain objects; but hit a” class name is IpRangeAggregationBuilder.java. We extracted the following from OpenSearch 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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