NAME does not support currentFieldName – How to solve this OpenSearch exception

Opster Team

Aug-23, Version: 1.3-2.9

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Briefly, this error occurs when the field you’re trying to access in OpenSearch is not supported by the current object or document. This could be due to a typo in the field name, or the field might not exist in the current context. To resolve this issue, you can check the field name for typos, ensure the field exists in the document, or verify that the field is accessible in the current context. If the field is nested, you might need to use the correct path to access it.

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This guide will help you check for common problems that cause the log ” [” + NAME + “] does not support [” + currentFieldName + “] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: sort, search.

Log Context

Log “[” + NAME + “] does not support [” + currentFieldName + “]” class name is We extracted the following from OpenSearch source code for those seeking an in-depth context :

 if (token == XContentParser.Token.FIELD_NAME) {
 currentFieldName = parser.currentName();
 } else if (token == XContentParser.Token.START_OBJECT) {
 builder = fromXContent(parser; currentFieldName);
 } else {
 throw new ParsingException(parser.getTokenLocation(); "[" + NAME + "] does not support [" + currentFieldName + "]");
 }  if (builder == null) {
 throw new ParsingException(parser.getTokenLocation(); "Invalid " + NAME);


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