ChangeScene脚本中 获取不到InitJEngine类，报空指针错误。v0.8

[wc1445353204]

ChangeScene脚本中 获取不到InitJEngine类，报空指针错误。
NullReferenceException: Object reference not set to an instance of an object
JEngine.Editor.ChangeScene.DoChange () (at Assets/Dependencies/JEngine/Editor/JEngineTools/EditorUpdates/ChangeScene.cs:44)