我按照正点的建立了库函数版本的工程模板，但是出现了一个报错（  ..HALLIBSrcstm32f2xx_hal_i2c.c(3074): error:  #268: declaration may not appear after executable statement in block），不知道怎么解决，小白一个，望大神指导下
然后我根据报错的原因更改了下  tickstart = HAL_GetTick();
                                            __IO uint32_t count = 0U;
把这两句话调换了下位置，上面报错的问题是解决了，但出现了更多的错误：
1、..OBJ apalate.axf: Error: L6200E: Symbol HAL_MspDeInit multiply defined (by stm32f2xx_hal_msp_template.o and stm32f2xx_hal_msp.o).
2、..OBJ apalate.axf: Error: L6200E: Symbol HAL_MspInit multiply defined (by stm32f2xx_hal_msp_template.o and stm32f2xx_hal_msp.o).
3、..OBJ apalate.axf: Error: L6200E: Symbol HAL_InitTick multiply defined (by stm32f2xx_hal_timebase_rtc_wakeup_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).
4、..OBJ apalate.axf: Error: L6200E: Symbol HAL_InitTick multiply defined (by stm32f2xx_hal_timebase_tim_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).
5、..OBJ apalate.axf: Error: L6200E: Symbol HAL_ResumeTick multiply defined (by stm32f2xx_hal_timebase_rtc_wakeup_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).
6、..OBJ apalate.axf: Error: L6200E: Symbol HAL_ResumeTick multiply defined (by stm32f2xx_hal_timebase_tim_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).
7、..OBJ apalate.axf: Error: L6200E: Symbol HAL_SuspendTick multiply defined (by stm32f2xx_hal_timebase_rtc_wakeup_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).
8、..OBJ apalate.axf: Error: L6200E: Symbol HAL_SuspendTick multiply defined (by stm32f2xx_hal_timebase_tim_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).
9、..OBJ apalate.axf: Error: L6200E: Symbol hRTC_Handle multiply defined (by stm32f2xx_hal_timebase_rtc_wakeup_template.o and stm32f2xx_hal_timebase_rtc_alarm_template.o).