KNOWLEDGE BASE

Tableau Prep Builder Fails to Overwrite .hyper File Due To "Failure evaluation database: Hyper API: regex_error(error_stack)"


Published: 25 Feb 2020
Last Modified Date: 22 Oct 2020

Issue

The following error occurs when trying to overwrite an existing hyper file:

Failure evaluation database: Hyper API: regex_error(error_stack): There was insufficient memory to determine whether the regular expression could match the specified character sequence."

Environment

  • Tableau Prep Builder

Resolution

Upgrade Tableau Prep Builder 2020.2.1 and later.

Cause

The is a known issue that is resolved in the more recent versions of Tableau Prep Builder.
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