**UIS v1.3.9** in **Unity 6000.5.1f1**==>Error

KPDN

KPDN

Member
When installing **UIS v1.3.9** in **Unity 6000.5.1f1**, errors occur immediately upon installation. Error screenshots are attached. This error cannot be mitigated by user intervention; once UIS is installed, Unity fails to launch. The exact root cause of the error is unknown.

PS: I am currently integrating UIS with other plugins for extension work. Since v1.3.9 is unusable, I plan to temporarily use an older version for integration. Therefore, this bug has minimal impact on my current workflow. Nevertheless, the inability to import the package into newer Unity versions constitutes a fairly critical issue.

Error.png
 
It appears the issue stems from editor‑only code. The parts I need to reference are core data classes such as `Item` and `ItemDefinition`. For this reason I will continue working with an older package version. I am submitting this bug report to document the failure observed on newer Unity releases.
 
What version are you updating from? My guess is that your editor prefs are corrupted. You can try doing an EditorPrefs.DeleteAll to ensure you are starting from a good state.
 
Alright, I tried calling `EditorPrefs.DeleteAll`. After re‑importing, everything works correctly. It’s possible some unknown settings got modified earlier when I was troubleshooting another plugin that was also throwing errors in 6000.5. Right now, UIS is functioning properly on 6000.5.
 
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