# System.tag.configure Error

**URL:** <https://forum.inductiveautomation.com/t/system-tag-configure-error/112586>\
**Category:** Ignition\
**Tags:** ignition81, scripting\
**Created:** [December 3, 2025, 10:29am UTC](https://forum.inductiveautomation.com/t/system-tag-configure-error/112586 "2025-12-03T10:29:04Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![tgarrison](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tgarrison/32/80965_2.png) [@tgarrison](https://forum.inductiveautomation.com/u/tgarrison)\
**Post date:** [December 3, 2025, 1:56pm UTC](https://forum.inductiveautomation.com/t/system-tag-configure-error/112586/3 "2025-12-03T13:56:22Z")

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Possibly related to this:

> [@8.3.1 System.tag.getConfiguration() not behaving the same as 8.1](https://forum.inductiveautomation.com/t/8-3-1-system-tag-getconfiguration-not-behaving-the-same-as-8-1/112188):
>
> Previously in 8.1 the system.tag.getConfiguration() would return a config object that could then be used to make edits to a tag and then reconfigure it using system.tag.configure() with that config object. tp = "[default]Test/New Tag" config = system.tag.getConfiguration(tp, True) system.tag.configure("[default]Test", config, 'o') In 8.1 this gives a [Good] result. However in 8.3.1 this gives the following error. [Error\_Configuration("java.lang.ClassCastException: class com.inductiveautomat…

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