KNOWLEDGE BASE

Prep Builder 2020.4 Unable To Open Flow File And Message "An Error Has Occurred"


Published: 14 Jan 2021
Last Modified Date: 08 Jul 2022

Issue

When opening a flow file that uses wildcard unioned files as data source with Tableau Prep Builder 2020.4.1 the following error occurs:

User-added image
The error occurs when one or more of the original input file(s) is missing.

Environment

  • Tableau Prep Builder 2020.4.1
  • Excel

Resolution

Option 1

Upgrade to Tableau Prep Builder 2021.1.3


Option 2

Make sure all input files exist.

 

Cause

This is a known issue that is fixed in more recent version of Tableau Prep Builder.
Did this article resolve the issue?