인프런 커뮤니티 질문&답변

제가 TargetSelectionTimingOption을 useInAction으로 했는데
SpawnSkillObjectAction클래스의 Apply부분에서 에러가 발생합니다.

public override void Apply(Skill skill)

{

foreach (var targetPosition in skill.TargetPositions) // 이 부분에서 에러 발생

{

var skillObject = GameObject.Instantiate(skillObjectPrefab).GetComponent<SkillObject>();

skillObject.transform.position = targetPosition + (Vector3.up * 0.001f);

skillObject.Setup(skill, targetSearcherForSkillObject, duration, applyCount, objectScale);

}

}

에러는 다음 오류가 발생합니다.
NullReferenceException: Object reference not set to an instance of an object

SpawnSkillObjectAction.Apply (Skill skill) (at Assets/Scripts/Core/Skill/Action/SpawnSkillObjectAction.cs:25)

Skill.Apply (System.Boolean isConsumeApplyCount) (at Assets/Scripts/Core/Skill/Skill.cs:643)

InActionState.Apply () (at Assets/Scripts/Core/Skill/StateMachine/State/InActionState.cs:75)

InActionState.Enter () (at Assets/Scripts/Core/Skill/StateMachine/State/InActionState.cs:23)

StateMachine`1[EntityType].ChangeState (StateMachine`1+StateData[EntityType] newStateData) (at Assets/Scripts/Core/StateMachine/StateMachine.cs:88)

StateMachine`1[EntityType].ChangeState (State`1[EntityType] newState, System.Int32 layer) (at Assets/Scripts/Core/StateMachine/StateMachine.cs:99)

StateMachine`1[EntityType].TryTransition (System.Collections.Generic.IReadOnlyList`1[T] transtions, System.Int32 layer) (at Assets/Scripts/Core/StateMachine/StateMachine.cs:117)

StateMachine`1[EntityType].Update () (at Assets/Scripts/Core/StateMachine/StateMachine.cs:135)

Skill.Update () (at Assets/Scripts/Core/Skill/Skill.cs:396)

SkillSystem.UpdateSkills () (at Assets/Scripts/Core/Skill/SkillSystem.cs:165)

SkillSystem.Update () (at Assets/Scripts/Core/Skill/SkillSystem.cs:76)