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Error "TableauException: Tableau Data Engine Error: 4" After Restoring Backup


Published: 09 Jun 2015
Last Modified Date: 26 Aug 2015

Issue

After restoring a backup of Tableau Server, and when viewing a workbook which uses an extract that has a file name containing Unicode characters, the following error might occur: 

Unknown Server Error
An unexpected error occurred. If you continue to receive this error please contact your Tableau Server Administrator. 

TableauException: Tableau Data Engine Error: 4: Invalid Command: database: Path does not exist. Unable to connect to the server "<Server Name>" Check that the server is running and that you have access privileges to the requested database. 

Environment

Tableau Server

Resolution

Option 1

Upgrade to Tableau Server 9.0.5 or a later version. For more information, see Upgrading Tableau Server

Option 2

  1. Recreate the extract.
  2. Re-publish the extract (if applicable).
  3. Point the workbook to the new extract. For more information, see Replacing Data Sources

Cause

This behavior is related to a known issue which has been corrected in more recent versions. 
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