[]请问例子特效导出时报错？ TypeLoadException: Could not load type 'MainModule'.

 TypeLoadException: Could not load type 'MainModule'.
LayaTools.DataManager.createFileLH2 (LayaTools.NodeLH nodeLH, .JSONObject subNode)
LayaTools.DataManager.createFileLH2 (LayaTools.NodeLH nodeLH, .JSONObject subNode)
LayaTools.DataManager.createFileLH2 (LayaTools.NodeLH nodeLH, .JSONObject subNode)
LayaTools.DataManager.getData (Boolean selected, Boolean scene)
LayaPlugin.windowShowExportScene () (at Assets/LayaPlugin/LayaItem.cs:116)
LayaPlugin.OnGUI () (at Assets/LayaPlugin/LayaItem.cs:40)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)