问题-XE8报Object factory for class{xx-xx-xx-xx-xx} is missing. To register it, you can drop component[TFDGUIxWaitCursor] into your project.

问题现象：XE8开发数据访问程序时放入了FDPhysMSSQLDriverLink1、FDConnection1、FDConnection1、FDQuery1、DBGrid1，设计期没法，运行期报"Object factory for class{xx-xx-xx-xx-xx} is missing. To register it, you can drop component[TFDGUIxWaitCursor] into your project."。

问题原因：群里朋友说是少个注册类。没有官方解释。有了解的朋友M我哦。

问题处理：在窗体上托放一个“TFDGUIxWaitCursor”控件就可以了。