JsonSerializationException: Unexpected end when deserializing array. Path 'Steps[0]', line 1, position 551.
--LineNumber: 1
--LinePosition: 551
--Path: Steps[0]
StackTrace:
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ThrowUnexpectedEndException(JsonReader reader, JsonContract contract, Object currentObject, String message)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   在 Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   在 Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   在 Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   在 Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   在 Quicker.View.X.ActionDesignerWindow.tQy8nYAUNi2()
   在 Quicker.View.X.ActionDesignerWindow..ctor(SQLDataMgr sqlDataMgr, ActionItem editingActionItem, Boolean isGlobalSubProgram, Boolean isReadonly)
   在 Quicker.Domain.Services.ActionEditMgr.EditAction(ActionProfile profile, Int32 row, Int32 col, ActionItem actionItem, Nullable`1 newActionType, EditActionParam editParam, Boolean forceReadonly)
   在 Quicker.Domain.Services.ActionEditMgr.EditActionById(String actionId, EditActionParam editParam, Boolean forceReadOnly)
   在 Quicker.Domain.Services.ActionEditMgr.<>c__DisplayClass57_0.P71ueEy9LTO(Object sender, RoutedEventArgs args)
   在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   在 System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)