Dynamic create object failed use C++

[anonymous_user_1c325c161 (anonymous_user_1c325c16)]

I want to create object use C++.

I call a function CreateAttributeDefineByName(“AMaxLifeDefine”).
but failed.
AMaxLifeDefine inheritance AttrDefinitionBase.
AttrDefinitionBase inheritance UObject.

Log:
LogUObjectGlobals:Warning: Failed to find object 'AttrDefinitionBase /Script/gameAttributes/GameAttributeStrategyDefinition/AMaxLifeDefine.

I can create Object from path.
Thank you.