ET使用FairyGUI在Android环境下修改代码会报错:

刚学习ET框架不久，找了烟雨大佬的ET6 + FariyGUI + xAsset + ILRuntime项目进行学习

想要实现安卓端的资源热更的效果，尝试出现了三种情况：

1、在Unity平台下修改代码（修改任意.cs文件，下同）再BuildAssetBundles没问题

2、在Unity平台下修改代码，切换为Android平台再BuildAssetBundles没问题

3、切换为Android平台进行修改代码，再BuildAssetBundles会报以下错误

一旦出现第三种情况，整个项目就报废，无法使用

请问第三种情况该怎么解决?

【完整报错如下】:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> System.ArgumentNullException: Value cannot be null.

Parameter name: key

at System.Collections.Generic.Dictionary`2[TKey,TValue].FindEntry (TKey key) [0×00008] in <695d1cc93cca45069c528c15c9fdd749>:0

at System.Collections.Generic.Dictionary`2[TKey,TValue].TryGetValue (TKey key, TValue& value) [0×00000] in <695d1cc93cca45069c528c15c9fdd749>:0

at ET.UnOrderMultiMapSet`2[T,K].Add (T t, K k) [0×00000] in D:\Test\Unity\ET-ET6-xAsset-ILRuntime-FGUI\Unity\Assets\Mono\Core\TypeDict\UnOrderMultiMapSet.cs:34

at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke(System.Reflection.MonoMethod,object,object[],System.Exception&)

at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0×00032] in <695d1cc93cca45069c528c15c9fdd749>:0

— End of inner exception stack trace —

at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0×00000] in <695d1cc93cca45069c528c15c9fdd749>:0

at ILRuntime.CLR.Method.CLRMethod.Invoke (ILRuntime.Runtime.Intepreter.ILIntepreter intepreter, ILRuntime.Runtime.Stack.StackObject* esp, System.Collections.Generic.IList`1[T] mStack, System.Boolean isNewObj) [0×0019d] in D:\Test\Unity\ET-ET6-xAsset-ILRuntime-FGUI\Unity\Assets\ThirdParty\ILRuntime\ILRuntime\CLR\Method\CLRMethod.cs:323

at ILRuntime.Runtime.Intepreter.ILIntepreter.Execute (ILRuntime.CLR.Method.ILMethod method, ILRuntime.Runtime.Stack.StackObject* esp, System.Boolean& unhandledException) [0×034ed] in D:\Test\Unity\ET-ET6-xAsset-ILRuntime-FGUI\Unity\Assets\ThirdParty\ILRuntime\ILRuntime\Runtime\Intepreter\ILIntepreter.cs:2046

UnityEngine.Debug:LogError (object)

ET.UnityLogger:Error (string) (at Assets/Mono/Core/Log/UnityLogger.cs:30)

ET.Log:Error (System.Exception) (at Assets/Mono/Core/Log/Log.cs:93)

System.Reflection.MethodBase:Invoke (object,object[])

ILRuntime.CLR.Method.CLRMethod:Invoke (ILRuntime.Runtime.Intepreter.ILIntepreter,ILRuntime.Runtime.Stack.StackObject*,System.Collections.Generic.IList`1<object>,bool) (at Assets/ThirdParty/ILRuntime/ILRuntime/CLR/Method/CLRMethod.cs:323)

ILRuntime.Runtime.Intepreter.ILIntepreter:Execute (ILRuntime.CLR.Method.ILMethod,ILRuntime.Runtime.Stack.StackObject*,bool&) (at Assets/ThirdParty/ILRuntime/ILRuntime/Runtime/Intepreter/ILIntepreter.cs:2046)

ILRuntime.Runtime.Intepreter.DelegateAdapter:ILInvokeSub (ILRuntime.Runtime.Intepreter.ILIntepreter,ILRuntime.Runtime.Stack.StackObject*,System.Collections.Generic.IList`1<object>) (at Assets/ThirdParty/ILRuntime/ILRuntime/Runtime/Intepreter/DelegateAdapter.cs:878)

ILRuntime.Runtime.Intepreter.DelegateAdapter:ILInvoke (ILRuntime.Runtime.Intepreter.ILIntepreter,ILRuntime.Runtime.Stack.StackObject*,System.Collections.Generic.IList`1<object>) (at Assets/ThirdParty/ILRuntime/ILRuntime/Runtime/Intepreter/DelegateAdapter.cs:855)

ILRuntime.Runtime.Intepreter.MethodDelegateAdapter:InvokeILMethod () (at Assets/ThirdParty/ILRuntime/ILRuntime/Runtime/Intepreter/DelegateAdapter.cs:728)

ET.Init/<InternalAwake>d__5:MoveNext () (at Assets/Mono/MonoBehaviour/Init.cs:63)

ET.XAssetUpdater/<>cDisplayClass2_0:<StartUpdate>b0 () (at Assets/Mono/XAsset/XAssetUpdater.cs:26)

libx.Updater/<LoadGameScene>d__28:MoveNext () (at Assets/ThirdParty/XAsset/Runtime/Core/Updater.cs:398)

UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)