Exception堆栈追踪

上代码

try{SaveData saveData = SaveLoadManager.Load(migrate: false);if (saveData != null){Version v = new Version(saveData.gameVersion);Version v2 = new Version(Cheats.version);if (v < v2){SaveLoadManager.MigrationBackupLocalSave();SaveLoadManager.cloudSaveMustBeBackedUp = true;}saveData = SaveLoadManager.MigrateSaveData(saveData);LoadSim(saveData, 0f, fromServer: false);}else{LoadSim(null, 0f, fromServer: false);}}catch (Exception ex2){if (string.IsNullOrEmpty(DEBUGerror)){DEBUGerror = "Error at Main.Start:" + System.Environment.NewLine;DEBUGerror = DEBUGerror + ex2.Message + System.Environment.NewLine;DEBUGerror += ex2.StackTrace;}UnityEngine.Debug.Log("!!!LOAD FAILED!!! Loading zero state");UnityEngine.Debug.Log(ex2.Message);//具体错误信息UnityEngine.Debug.Log(ex2.StackTrace);//显示错误的调用栈ex = ex2;SaveLoadManager.loadingSaveFailed = true;}

UnityEngine.Debug.Log(ex2.Message);//具体错误信息

输出：Object reference not set to an instance of an object

UnityEngine.Debug.Log(ex2.StackTrace);//显示错误的调用栈

 输出： at Simulation.Simulator.InitLoad (SaveLoad.SaveData saveData) [0x00327] in D:\SVN-MyHero\Assets\Scripts\Simulation\Simulator.cs:609 
  at Main.LoadSim (SaveLoad.SaveData saveData, System.Single additionalOfflineSimTime, System.Boolean fromServer, System.Boolean dontLoadAssets) [0x000e6] in D:\SVN-MyHero\Assets\Scripts\Main.cs:869 
  at Main.Start () [0x001a6] in D:\SVN-MyHero\Assets\Scripts\Main.cs:407