Error "The path to Tableau Protocol Server is empty" Opening Workbooks

Published: 29 Aug 2014
Last Modified Date: 31 Jul 2017


When you try to open a workbook connected to a Microsoft SQL Server data source, the following error might occur:
An error occurred while communicating with the Microsoft SQL Server Database data source '<data source name>'.
The path to Tableau Protocol Server is empty
Unable to connect to the server "<server name>". Check that the server is running and that you have access privileges to the requested database.


  • Tableau Desktop
  • Microsoft SQL Server


Download and install the Microsoft SQL Drivers from Driver Download. If the drivers have been installed previously, download and reinstall the driver files.


The Microsoft SQL Server drivers on the computer running Tableau Desktop are missing, outdated, or need to be repaired.
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