# UnrealEditor-CoreUObject.dll!UnknownFunction --\> Error when packaging 

**URL:** <https://forums.unrealengine.com/t/unrealeditor-coreuobject-dll-unknownfunction-error-when-packaging/1677072>\
**Category:** Programming & Scripting\
**Tags:** unreal-engine, question, Blueprint\
**Created:** [February 9, 2024, 8:09pm UTC](https://forums.unrealengine.com/t/unrealeditor-coreuobject-dll-unknownfunction-error-when-packaging/1677072 "2024-02-09T20:09:11Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![imagineer](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/imagineer/32/562003_2.png) [@imagineer](https://forums.unrealengine.com/u/imagineer)\
**Post date:** [April 29, 2024, 6:40pm UTC](https://forums.unrealengine.com/t/unrealeditor-coreuobject-dll-unknownfunction-error-when-packaging/1677072/3 "2024-04-29T18:40:41Z")

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> [@Getting editor symbols for debugging](https://forums.unrealengine.com/t/getting-editor-symbols-for-debugging/61297/10):
>
> Thanks Ryan20fun, was looking for the symbols as I have EU4 crashing when I try to open a file wink

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