No handler for type type declared on field multiFieldName – 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 an unknown or unsupported data type declared on a field. This could be due to a typo in the field type or using a type that is not supported in the current version of Elasticsearch. To resolve this issue, you should first verify the field type in your mapping. If the type is correct, check if it’s supported in your Elasticsearch version. If it’s not supported, you may need to update your Elasticsearch version or change the field type to a supported one.

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This guide will help you check for common problems that cause the log ” no handler for type [” + type + “] declared on field [” + multiFieldName + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, handler.

Log Context

Log “no handler for type [” + type + “] declared on field [” + multiFieldName + “]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new MapperParsingException("no type specified for property [" + multiFieldName + "]");
 }  Mapper.TypeParser typeParser = parserContext.typeParser(type);
 if (typeParser == null) {
 throw new MapperParsingException("no handler for type [" + type + "] declared on field [" + multiFieldName + "]");
 if (typeParser instanceof FieldMapper.TypeParser == false) {
 throw new MapperParsingException("Type [" + type + "] cannot be used in multi field");


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