KNOWLEDGE BASE

Error "Migration mismatch: file migrations missing" Restoring Backup


Published: 06 Nov 2014
Last Modified Date: 04 Aug 2017

Issue

When restoring a backup, the following error may occur:

===== Migration mismatch: file migrations missing: [<list of file numbers>]

Environment

Tableau Server

Resolution

Option 1

Uninstall and re-install Tableau Server or upgrade to the latest maintenance release for the version currently installed.

Option 2

Copy the missing folder(s) from a worker hosting an Application Server (wgserver) process.

Cause

The schema signature files are missing from C:\Program Files\Tableau\Tableau Server\8.2\wgserver\z5\WEB-INF\db\schema_signatures\signature_files, so Tableau cannot validate the schema.
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