# JSON Module Error, Caused by: org.python.core.PyException: LookupError: unknown encoding 'hex'

**URL:** <https://forum.inductiveautomation.com/t/json-module-error-caused-by-org-python-core-pyexception-lookuperror-unknown-encoding-hex/108217>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [July 8, 2025, 7:11am UTC](https://forum.inductiveautomation.com/t/json-module-error-caused-by-org-python-core-pyexception-lookuperror-unknown-encoding-hex/108217 "2025-07-08T07:11:21Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\
**Post date:** [July 8, 2025, 1:57pm UTC](https://forum.inductiveautomation.com/t/json-module-error-caused-by-org-python-core-pyexception-lookuperror-unknown-encoding-hex/108217/7 "2025-07-08T13:57:27Z")

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Please see [Wiki - how to post code on this forum](https://forum.inductiveautomation.com/t/wiki-how-to-post-code-on-this-forum/77831). Use this when posting code or error messages. Thanks.

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