Version string expected min_version – Elasticsearch Error How To Solve Related Issues

Version string expected min_version – 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 “version string expected min_version” 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: repositories, version.

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”version string expected [min_version]”classname  is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

throw new ElasticsearchParseException("start object expected [" + INDEX_METADATA_IDENTIFIERS + "]");
  } else if (MIN_VERSION.equals(field)) {
  if (parser.nextToken() != XContentParser.Token.VALUE_STRING) {
  throw new ElasticsearchParseException("version string expected [min_version]");
  final Version version = Version.fromString(parser.text());
  assert SnapshotsService.useShardGenerations(version);
  } else {
  throw new ElasticsearchParseException("unknown field name [" + field + "]");


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 java.lang.IllegalAccessError: tried to access method -views 166,300 ,score 71

How to compare software version number using js? (only number) -views   79,264,score 164



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