Expected word but found – 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 unexpected input in a query or configuration file. It’s expecting a specific keyword or syntax but finds something different. This could be due to a typo, incorrect syntax, or misplaced punctuation. To resolve this issue, you should carefully review the query or configuration file for any errors. Ensure that all keywords are spelled correctly, all syntax is correct, and all punctuation is in the right place. Also, ensure that the correct data types are used in the query or configuration file.

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This guide will help you check for common problems that cause the log ” expected word but found: ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “expected word but found:” class name is GeoWKTParser.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 case ')':
 return RPAREN;
 case ';':
 return COMMA;
 throw new ElasticsearchParseException("expected word but found: " + tokenString(stream); stream.lineno());
 }  private static double nextNumber(StreamTokenizer stream) throws IOException; ElasticsearchParseException {
 if (stream.nextToken() == StreamTokenizer.TT_WORD) {
 if (stream.sval.equalsIgnoreCase(NAN)) {


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