Translate显示0错误，0警告，Build却不成功？

给位好友，我写了一段程序，Translate显示0错误，0警告，Build却不成功？显示下面的内容：
linking...
.\obj\Smpl_NUTINY_100.axf: Error: L6200E: Symbol TMR0_IRQHandler multiply defined (by timer0_function.o and drvtimer.o).
.\obj\Smpl_NUTINY_100.axf: Not enough information to list the image map.
.\obj\Smpl_NUTINY_100.axf: Finished: 1 information, 0 warning and 1 error messages.
Target not created
为啥啊？

Error: L6200E: Symbol TMR0_IRQHandler multiply defined (by timer0_function.o and drvtimer.o).