Error "Failure loading FedOp: /path|Parse|181 value - empty text" while running a flow on Tableau Prep Builder 2021.2.2

Published: 21 Jul 2021
Last Modified Date: 26 May 2022


When trying to run a flow on Tableau Prep Builder, the following error might occur:

"Failure loading FedOp: /path|Parse|181 value - empty text"


  • Tableau Prep Builder 2021.2.2 and newer
  • macOS 10.15, 10.16 & Windows
  • Text Files


Option 1

Upgrade to Tableau Prep Builder 2021.3.1 or newer.

Option 2

Use an older version of Tableau Prep Builder.

Option 3

Set an environment variable if not able to upgrade.
  1. On Windows:
    • Set environment variable useJaxbSerialization=true
  2. On macOS:
    • Go to /Applications/Tableau Prep Builder (replacing the version with your specific version).
    • Add maestro.query.useJaxbSerialization=true to (Note: You will need to use a command such as sudo emacs in order to edit it; and you can ignore the warning about not adding configuration in this location, though this may indicate you'll need to perform these steps again if you reinstall the program).


An issue with Tableau Prep Builder's query pipeline caused the error.
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