Exception details:
    Message: Ссылка на объект не указывает на экземпляр объекта.
    Source: MapSurfer.Windows.Forms
    StackTrace:    в MapSurfer.Windows.Forms.DefaultCompletionDataExtractor.긪瞆扣絳㾼骰䷀(DataFieldAttributeList 唷䠎寣ཛ䩯澟۠឴)
   в MapSurfer.Windows.Forms.DefaultCompletionDataExtractor.Extract(TextArea textArea, Char charTyped)
   в ICSharpCode.TextEditor.Gui.CompletionWindow.CodeCompletionWindow.ShowCompletionWindow(Form parent, TextEditorControl control, String fileName, ICompletionDataProvider completionDataProvider, Char firstChar, Boolean showDeclarationWindow, Boolean fixedListViewWidth)
   в MapSurfer.Windows.Forms.CodeCompletionHandler`1.㟒㙥৘ﮃ㺳伕(Char 帲㣄螸ᓴ䍛⫣言)
   в MapSurfer.Windows.Forms.CodeCompletionHandler`1.诙䦁㡼낤㚦㊩詋越(Char 帲㣄螸ᓴ䍛⫣言)
   в ICSharpCode.TextEditor.TextArea.SimulateKeyPress(Char ch)
   в ICSharpCode.TextEditor.TextArea.OnKeyPress(KeyPressEventArgs e)
   в System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
   в System.Windows.Forms.Control.WmKeyChar(Message& m)
   в System.Windows.Forms.Control.WndProc(Message& m)
   в System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)