老师您好！我把行为树插件导入后，每次运行时都有如下报错，但不影响运行：

CreateScriptableObjectInstanceFromType is not allowed to be called from a ScriptableObject constructor (or instance field initializer), call it in OnEnable instead. Called from ScriptableObject 'BehaviorDesignerWindow'.
See "Script Serialization" page in the Unity Manual for further details.

请问老师这是怎么回事。谢谢。