Unknown property path for aggType aggregation aggName – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.16-8.9

Briefly, this error occurs when an unknown or invalid property is used in an aggregation query in Elasticsearch. The property specified in the path does not exist for the aggregation type (aggType) being used. To resolve this issue, you should verify the property and aggregation type being used. Ensure that the property exists and is valid for the specified aggregation type. Also, check for any typographical errors in the property name or aggregation type. If the error persists, consider reviewing the Elasticsearch documentation for the correct usage of aggregations.

This guide will help you check for common problems that cause the log ” unknown property ” + path + ” for ” + aggType + ” aggregation [” + aggName + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “unknown property ” + path + ” for ” + aggType + ” aggregation [” + aggName + “]” class name is MlAggsHelper.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

public final class MlAggsHelper {  private MlAggsHelper() {}  public static InvalidAggregationPathException invalidPathException(List path; String aggType; String aggName) {
 return new InvalidAggregationPathException("unknown property " + path + " for " + aggType + " aggregation [" + aggName + "]");
 }  /**
 * This extracts the bucket values as doubles from the passed aggregations.


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