Missing path field for nested aggregation ” + aggregationName + ” – 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.

Briefly, this error message indicates that the path field for the specified nested aggregation is missing from the request. In order to perform a nested aggregation, the path to the nested object must be specified. If the path

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 ” Missing path field for nested aggregation ” + aggregationName + ” ” 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 “Missing [path] field for nested aggregation [” + aggregationName + “]”classname  is NestedAggregationBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (path == null) {
 // "field" doesn't exist; so we fall back to the context of the ancestors
 throw new ParsingException(parser.getTokenLocation(); "Missing [path] field for nested aggregation [" + aggregationName + "]");
 return new NestedAggregationBuilder(aggregationName; path);


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