+ propName + must not have a null value – Elasticsearch Error How To Solve Related Issues

+ propName + must not have a null value – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 


This guide will help you check for common problems that cause the log ” + propName + must not have a null value” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: index.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”[” + propName + “] must not have a [null] value”classname  is TypeParsers.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (false == propName.equals("null_value") && propNode == null) {
  * No properties *except* null_value are allowed to have null. So we catch it here and tell the user something useful rather
  * than send them a null pointer exception later.
  throw new MapperParsingException("[" + propName + "] must not have a [null] value");
  * Parse the {@code meta} key of the mapping.

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Create Elasticsearch curl query for not null and not empty("") -views 88,276 ,score 68

ElasticSearch: How to write query where string field is either null or empty? -views   18,721,score 8

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