Could not parse transform for watch expected a transform object but

Could not parse transform for watch expected a transform object but – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch is unable to parse the transform object for a watch. This usually happens when the transform object is incorrectly formatted or missing. To resolve this issue, you should first check the syntax of your transform object to ensure it’s correct. If the syntax is correct, ensure that the transform object is not missing from your watch. If it’s missing, you need to add it. Also, make sure that the transform object is compatible with the version of Elasticsearch you are using.

This guide will help you check for common problems that cause the log ” could not parse [{}] transform for watch [{}]. expected a transform object; but ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “could not parse [{}] transform for watch [{}]. expected a transform object; but” class name is ChainTransform.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 List transforms = new ArrayList<>();  String currentFieldName = null;
 while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
 if (token != XContentParser.Token.START_OBJECT) {
 throw new ElasticsearchParseException("could not parse [{}] transform for watch [{}]. expected a transform object; but " +
 "found [{}] instead"; TYPE; watchId; token);
 }
 while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
 if (token == XContentParser.Token.FIELD_NAME) {
 currentFieldName = parser.currentName();

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