Cannot use expression with text variable using – How to solve this Elasticsearch error

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Cannot use expression with text variable using – 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 ” Cannot use expression with text variable using ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: Node.

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 “Cannot use expression with text variable using”classname  is ExpressionAggregationScript.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

// _value isn't used in script if specialValue == null
 if (specialValue != null) {
 if (value instanceof Number) {
 specialValue.setValue(((Number)value).doubleValue());
 } else {
 throw new GeneralScriptException("Cannot use expression with text variable using " + exprScript);
 }
 }
 }
 };
 }

 

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