[LayaAirIDE 2.0]导出带动作的模型会报错

求救，我用的是unity 2018.4.7f1，在unity里播放是没问题的，用插件导出就出错
 KeyNotFoundException: The given key was not present in the dictionary.
System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) (at <df7127ba07dc446d9f5831a0ec7b1d63>:0)
p.a (UnityEngine.GameObject A_0, g A_1, System.Boolean A_2) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.a (UnityEngine.GameObject A_0, g A_1, System.Collections.Generic.List`1[T] A_2) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.a (UnityEngine.GameObject A_0, g A_1, g A_2, UnityEngine.Vector3 A_3, UnityEngine.Quaternion A_4, UnityEngine.Vector3 A_5, System.String& A_6) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.a (UnityEngine.GameObject A_0, System.String A_1, g A_2, System.Boolean A_3, System.Boolean A_4, System.Boolean A_5) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.a (UnityEngine.GameObject A_0, System.String A_1, g A_2, System.Boolean A_3, System.Boolean A_4, System.Boolean A_5) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.j () (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.k () (at <83305a103c6a46948a18b7f5a20f00f1>:0)
p.b (System.String A_0) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
LayaAir3D.exportResource (System.Boolean isDebug, System.Int32 Platformindex, System.String lastname) (at <83305a103c6a46948a18b7f5a20f00f1>:0)
LayaAir3D.OnGUI () (at <83305a103c6a46948a18b7f5a20f00f1>:0)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <df7127ba07dc446d9f5831a0ec7b1d63>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <df7127ba07dc446d9f5831a0ec7b1d63>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <df7127ba07dc446d9f5831a0ec7b1d63>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at D:/unity/Editor/Mono/HostView.cs:342)
UnityEditor.HostView.Invoke (System.String methodName) (at D:/unity/Editor/Mono/HostView.cs:336)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at D:/unity/Editor/Mono/HostView.cs:310)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect, System.Boolean customBorder, System.Boolean floatingWindow, System.Boolean isBottomTab) (at D:/unity/Editor/Mono/GUI/DockArea.cs:361)
UnityEditor.DockArea.OldOnGUI () (at D:/unity/Editor/Mono/GUI/DockArea.cs:320)
UnityEngine.Experimental.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout) (at D:/unity/Modules/UIElements/IMGUIContainer.cs:266)
UnityEngine.Experimental.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, Unit