+ NAME + required field ‘field’ missing – 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 Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” + NAME + required field ‘field’ missing ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: query and index.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “[” + NAME + “] required field ‘field’ missing”classname  is FieldValueFactorFunctionBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

"[" + NAME + "] field 'factor' does not support lists or objects");
 if (field == null) {
 throw new ParsingException(parser.getTokenLocation(); "[" + NAME + "] required field 'field' missing");
 FieldValueFactorFunctionBuilder fieldValueFactorFunctionBuilder = new FieldValueFactorFunctionBuilder(field).factor(boostFactor)
 if (missing != null) {


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