# undefined symbol: PyExc\_ValueError

**URL:** https://discourse.paraview.org/t/undefined-symbol-pyexc-valueerror/5494
**Category:** In Situ Support
**Created:** [October 5, 2020, 8:18am UTC](https://discourse.paraview.org/t/undefined-symbol-pyexc-valueerror/5494 "2020-10-05T08:18:16Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![ihar](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ihar/32/6106_2.png) [@ihar](https://discourse.paraview.org/u/ihar)
#### Post date: [March 11, 2021, 10:13am UTC](https://discourse.paraview.org/t/undefined-symbol-pyexc-valueerror/5494/10 "2021-03-11T10:13:48Z")

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Had similar issue, `VTK_PYTHON_OPTIONAL_LINK=OFF` flag solved the problem. Thank you.

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