无法在Mono中创建Gtk 2.0项目 - 发生错误文件窗口小部件无法写入 -

Question

如果我在Mono（Linux）中创建一个新的Gtk 2.0项目，我会收到以下错误：

An error has occurred
File Widget could not be written.
System.FormatException: Input string was not in the correct format