Token not allowed – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch encounters a token in the request that it doesn’t recognize or allow. This could be due to incorrect syntax, a typo, or an unsupported character. To resolve this issue, you should first check the request for any syntax errors or typos. If the error persists, try removing or replacing the problematic token. If the token is necessary, ensure that it is supported by the version of Elasticsearch you are using.

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This guide will help you check for common problems that cause the log ” token [{}] not allowed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “token [{}] not allowed” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } else {
 String fieldKeys = collectionToDelimitedString(fields.keySet(); "; ");
 throw new ElasticsearchParseException("field [{}] not supported - must be one of: {}"; field; fieldKeys);
 } else {
 throw new ElasticsearchParseException("token [{}] not allowed"; subParser.currentToken());
 geohash != null;


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