Requires script field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when an Elasticsearch operation that requires a ‘script’ field is executed without providing it. The ‘script’ field is used to define custom scripts for various operations like field manipulation, filtering, etc. To resolve this issue, you should ensure that the ‘script’ field is included in your request body with a valid script. Also, check your script syntax and ensure it’s correct. If you’re using a stored script, ensure it’s properly registered and the correct id is used.

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

Log Context

Log “requires ‘script’ field” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  if (script == null) {
 throw new ParsingException(parser.getTokenLocation(); NAME + " requires 'script' field");
 }  return new ScriptScoreFunctionBuilder(script);


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