Index template matching ” + + ” not found – Elasticsearch Error How To Solve Related Issues

Index template matching ” + + ” not found – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 


This guide will help you check for common problems that cause the log “index template matching ” + + ” not found” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: index, indices, template, admin, request.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”index template matching [” + + “] not found”classname  is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

  } else if (allTemplates.containsKey(name)) {
  results.put(name; allTemplates.get(name));
  } else {
  throw new ResourceNotFoundException("index template matching [" + + "] not found");
  listener.onResponse(new GetComposableIndexTemplateAction.Response(results));


Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Could not resolve placeholder in string value -views 294,730 ,score 80

java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens -views   220,363,score 151



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