Invalid value for – 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 ” Invalid value for ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

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 “Invalid value for”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final ResponseType responseType;
 try {
 responseType = ResponseType.parse(require(config; RP_RESPONSE_TYPE));
 } catch (ParseException e) {
 // This should never happen as it's already validated in the settings
 throw new SettingsException("Invalid value for " + RP_RESPONSE_TYPE.getKey(); e);
 final Scope requestedScope = new Scope(config.getSetting(RP_REQUESTED_SCOPES).toArray(Strings.EMPTY_ARRAY));
 if (requestedScope.contains("openid") == false) {


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