Unexpected token ” + token + ” after ” + fieldName + ” – How to solve this Elasticsearch error

Average Read Time

2 Mins

Unexpected token ” + token + ” after ” + fieldName + ” – 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 ” unexpected token ” + token + ” after ” + fieldName + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search.

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 “unexpected token [” + token + “] after [” + fieldName + “]”classname  is SuggestBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (suggestionName == null) {
 throw new IllegalArgumentException("suggestion must have name");
 }
 suggestBuilder.addSuggestion(suggestionName; SuggestionBuilder.fromXContent(parser));
 } else {
 throw new ParsingException(parser.getTokenLocation(); "unexpected token [" + token + "] after [" + fieldName + "]");
 }
 }
 return suggestBuilder;
 }

 

Watch a demo of the Check-Up:

Analyze your cluster

Skip to content