unity runtime_error ai_generated true

MissingReferenceException：精灵 'ui_button_bg' 已被销毁，但你仍在尝试访问它。你的脚本应检查它是否为空，或者你不应销毁该对象。

MissingReferenceException: The sprite 'ui_button_bg' has been destroyed but you are still trying to access it. Your script should either check if it is null or you should not destroy the object.

ID: unity/missingreferenceexception-ui-image-sprite

其他格式: JSON · Markdown 中文 · English
82%修复率
84%置信度
1证据数
2023-09-18首次发现

版本兼容性

版本状态引入弃用备注
Unity 2022.3.18f1 active — — —
Unity 2023.1.5f1 active — — —
Unity 2021.3.33f1 active — — —

根因分析

UI Image 组件的精灵引用指向了一个已被销毁的 Sprite 对象（例如通过 Resources.UnloadUnusedAssets 或场景卸载），而 Image 仍然存在。

English

A UI Image component's sprite reference points to a Sprite object that was destroyed (e.g., via Resources.UnloadUnusedAssets or scene unloading) while the Image still exists.

generic

官方文档

https://docs.unity3d.com/ScriptReference/MissingReferenceException.html

解决方案

  1. Before accessing the sprite, check if the Image component's sprite is null and reassign it from a persistent source (e.g., Resources.Load or Addressables).
  2. Ensure the sprite asset is marked as 'Keep' in the Addressables system or is included in a preloaded asset bundle to prevent it from being unloaded.

无效尝试

常见但无效的做法:

  1. 70% 失败

    The sprite reference is lost at runtime due to destruction, not because it was never assigned. Setting null prevents the error but breaks UI functionality.

  2. 95% 失败

    This actually causes the problem; it destroys sprites that are still referenced.

  3. 90% 失败

    Sprites are not GameObjects; DontDestroyOnLoad works on GameObjects, not assets.