Error "Download and install the drivers, and then connect" Connecting to Oracle from Tableau Prep

Published: 25 Apr 2018
Last Modified Date: 31 Jan 2020


When you try to connect to Oracle from Tableau Prep, the following error occurs: 
An error occurred while communicating with Oracle. 
Download and install the drivers, and then connect. 

Detailed error message
oci not found. 
Unable to connect to the server "<server name>" Check that the server is running and that you have access privileges to the requested database. 

Clicking the URL in the error message opens an entry for Tableau Desktop 2018.1. Installing the Tableau Desktop Oracle drivers does not resolve the issue. 


  • Tableau Prep
  • Oracle


Scroll down past all the Tableau Desktop versions to access the Tableau Prep drivers. 
Screenshot of the Tableau Prep driver location on the drivers page


The links in the drivers page are organized alphabetically by database, then alphabetically by Tableau Product name.  Tableau Prep is listed after Tableau Desktop and before Tableau Server. 
Did this article resolve the issue?