--------------          Message          --------------
The main UI thread has thrown an exception.

O índice estava fora do intervalo. Ele deve ser não-negativo e menor que o tamanho da coleção.
Nome do parâmetro: index
--------------        Stack trace        --------------
   em GrfToWpfBridge.Application.DefaultErrorHandler._reportAnyManagedExceptions(String message, Exception exception, ErrorLevel errorLevel)
   em GrfToWpfBridge.Application.DefaultErrorHandler.Handle(Exception exception, ErrorLevel errorLevel)
   em TokeiLibrary.ApplicationManager._current_DispatcherUnhandledException(Object sender, DispatcherUnhandledExceptionEventArgs e)
   em System.Windows.Threading.Dispatcher.CatchException(Exception e)
   em System.Windows.Threading.Dispatcher.CatchExceptionStatic(Object source, Exception e)
   em System.Windows.Threading.ExceptionWrapper.CatchException(Object source, Exception e, Delegate catchHandler)
   em MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   em System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   em System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
   em System.Windows.Interop.HwndSource.OnPreprocessMessageThunk(MSG& msg, Boolean& handled)
   em System.Windows.Interop.HwndSource.WeakEventPreprocessMessage.OnPreprocessMessage(MSG& msg, Boolean& handled)
   em System.Windows.Interop.ThreadMessageEventHandler.Invoke(MSG& msg, Boolean& handled)
   em System.Windows.Interop.ComponentDispatcherThread.RaiseThreadMessage(MSG& msg)
   em System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   em System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   em System.Windows.Window.ShowHelper(Object booleanBox)
   em System.Windows.Window.Show()
   em System.Windows.Window.ShowDialog()
   em ActEditor.Core.Scripts.EditPaletteAdvanced.Execute(Act act, Int32 selectedActionIndex, Int32 selectedFrameIndex, Int32[] selectedLayerIndexes)
   em ActEditor.Core.ScriptLoader.<>c__DisplayClass34.<_generateScriptMenu>b__32()
   em ActEditor.Core.ScriptLoader.<>c__DisplayClass34.<_generateScriptMenu>b__33(Object s, RoutedEventArgs e)
   em System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   em System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   em System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   em System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
   em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   em System.Windows.Threading.DispatcherOperation.InvokeImpl()
   em System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
   em System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   em System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   em System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   em System.Windows.Threading.DispatcherOperation.Invoke()
   em System.Windows.Threading.Dispatcher.ProcessQueue()
   em System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   em MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   em MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   em System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   em MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   em MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   em System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   em System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   em System.Windows.Threading.Dispatcher.Run()
   em System.Windows.Application.RunDispatcher(Object ignore)
   em System.Windows.Application.RunInternal(Window window)
   em System.Windows.Application.Run(Window window)
   em ActEditor.GRFEditorMain.Main(String[] args)

--------------         Exception         --------------
System.Exception: The main UI thread has thrown an exception.

O índice estava fora do intervalo. Ele deve ser não-negativo e menor que o tamanho da coleção.
Nome do parâmetro: index ---> System.ArgumentOutOfRangeException: O índice estava fora do intervalo. Ele deve ser não-negativo e menor que o tamanho da coleção.
Nome do parâmetro: index
   em System.ThrowHelper.ThrowArgumentOutOfRangeException()
   em ActEditor.Tools.PaletteEditorTool.SpriteEditorControl.Save()
   em ActEditor.Tools.PaletteEditorTool.SpriteEditorControl.<.ctor>b__4()
   em TokeiLibrary.Shortcuts.CustomCommand.Execute(Object parameter)
   em System.Windows.Input.CommandManager.TranslateInput(IInputElement targetElement, InputEventArgs inputEventArgs)
   em System.Windows.UIElement.OnKeyDownThunk(Object sender, KeyEventArgs e)
   em System.Windows.Input.KeyEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   em System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   em System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   em System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   em System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   em System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   em System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   em System.Windows.Input.InputManager.ProcessStagingArea()
   em System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   em System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   em System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)
   em System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)
   em System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)
   em System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   --- Fim do rastreamento de pilha de exceções internas ---
--------------          Message          --------------
O índice estava fora do intervalo. Ele deve ser não-negativo e menor que o tamanho da coleção.
Nome do parâmetro: index
--------------      Inner exception      --------------
System.ArgumentOutOfRangeException: O índice estava fora do intervalo. Ele deve ser não-negativo e menor que o tamanho da coleção.
Nome do parâmetro: index
   em System.ThrowHelper.ThrowArgumentOutOfRangeException()
   em ActEditor.Tools.PaletteEditorTool.SpriteEditorControl.Save()
   em ActEditor.Tools.PaletteEditorTool.SpriteEditorControl.<.ctor>b__4()
   em TokeiLibrary.Shortcuts.CustomCommand.Execute(Object parameter)
   em System.Windows.Input.CommandManager.TranslateInput(IInputElement targetElement, InputEventArgs inputEventArgs)
   em System.Windows.UIElement.OnKeyDownThunk(Object sender, KeyEventArgs e)
   em System.Windows.Input.KeyEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   em System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   em System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   em System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   em System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   em System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   em System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   em System.Windows.Input.InputManager.ProcessStagingArea()
   em System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   em System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   em System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)
   em System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)
   em System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)
   em System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)