Error7.TSubsystemClass must be derived from TBaseType

Baba!为什么我获取子系统编译报错了！

看看代码

	InventorySubsystem = UGameplayStatics::GetGameInstance(this)->GetSubsystem<UExorcistInventorySubsystem>();
	check(InventorySubsystem);
	
	ExtensionSubsystem = UGameplayStatics::GetGameInstance(this)->GetSubsystem<UUIExtensionSubsystem>();
	check(ExtensionSubsystem);

解决思路

不好意思！ExtensionSubsystem并不是gamesubsystem

	ExtensionSubsystem = GetWorld()->GetSubsystem<UUIExtensionSubsystem>();