# Cannot Package Unreal Engine 5.4.4 and 5.5 because of a Reference Error in Convai Blueprint

**URL:** <https://forum.convai.com/t/cannot-package-unreal-engine-5-4-4-and-5-5-because-of-a-reference-error-in-convai-blueprint/5307>\
**Category:** Unreal Engine Plugin\
**Tags:** question, unreal-engine\
**Created:** [October 13, 2025, 12:33am UTC](https://forum.convai.com/t/cannot-package-unreal-engine-5-4-4-and-5-5-because-of-a-reference-error-in-convai-blueprint/5307 "2025-10-13T00:33:14Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Kathleen\_Yu](https://yyz2.discourse-cdn.com/flex004/user_avatar/forum.convai.com/kathleen_yu/32/3011_2.png) [@Kathleen\_Yu](https://forum.convai.com/u/Kathleen_Yu)\
**Post date:** [October 13, 2025, 12:33am UTC](https://forum.convai.com/t/cannot-package-unreal-engine-5-4-4-and-5-5-because-of-a-reference-error-in-convai-blueprint/5307/1 "2025-10-13T00:33:14Z")

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When I setup Convai for 5.4.4 and 5.5 I’m getting an illegal reference to my metahuman character on the Convai Base Player that doesn’t allow me to package the project properly. Have tried resetting the variables and uninstalling/reinstalling the convai plugin and I’m still encountering the same error.

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**Author:** ![Kathleen\_Yu](https://yyz2.discourse-cdn.com/flex004/user_avatar/forum.convai.com/kathleen_yu/32/3011_2.png) [@Kathleen\_Yu](https://forum.convai.com/u/Kathleen_Yu)\
**Post date:** [October 13, 2025, 12:36am UTC](https://forum.convai.com/t/cannot-package-unreal-engine-5-4-4-and-5-5-because-of-a-reference-error-in-convai-blueprint/5307/2 "2025-10-13T00:36:15Z")

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![Convai](https://canada1.discourse-cdn.com/flex004/uploads/convai/original/2X/8/8b3e91a7e1fec528e85427afb26862e24d77f088.png)

The UE versions that previously worked are no longer working after I updated convai plugin on unreal engine. (Cannot package the project)

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**Author:** ![Kathleen\_Yu](https://yyz2.discourse-cdn.com/flex004/user_avatar/forum.convai.com/kathleen_yu/32/3011_2.png) [@Kathleen\_Yu](https://forum.convai.com/u/Kathleen_Yu)\
**Post date:** [October 13, 2025, 1:31am UTC](https://forum.convai.com/t/cannot-package-unreal-engine-5-4-4-and-5-5-because-of-a-reference-error-in-convai-blueprint/5307/3 "2025-10-13T01:31:53Z")

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After extensive testing, I’ve found that the project packages correctly when I remove the characterID references in my metahuman character. So any reference errors likely come from how the characterID value is set in Convai Base Character blueprint.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex004/uploads/convai/original/1X/e60ef96aa7334c5ccf6682f6c6dbc20fcfa96b49.png) [@system](https://forum.convai.com/u/system)\
**Post date:** [November 12, 2025, 1:32am UTC](https://forum.convai.com/t/cannot-package-unreal-engine-5-4-4-and-5-5-because-of-a-reference-error-in-convai-blueprint/5307/4 "2025-11-12T01:32:27Z")

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