报错如下：Build started: Project: EX06
*** Using Compiler 'V6.19', folder: 'H:\KEILMDK\ARM\ARMCLANG\Bin'
Build target 'EX06'
../Middlewares/Third_Party/FreeRTOS/Source/tasks.c(38): warning: In file included from...
../Middlewares/Third_Party/FreeRTOS/Source/include\FreeRTOS.h(62): warning: In file included from...
../Middlewares/Third_Party/FreeRTOS/Source/include/portable.h(52): warning: In file included from...
../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM4F\portmacro.h(167): error: unknown type name '__forceinline'
static portFORCE_INLINE void vPortSetBASEPRI( uint32_t ulBASEPRI )
       ^
../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM4F\portmacro.h(162): note: expanded from macro 'portFORCE_INLINE'
        #define portFORCE_INLINE __forceinline

...

如果出现了以上报错，那么解决方案如下：

根据图片路径，把下面这两个文件覆盖上面的项目里的文件，需要每次打开项目都要重新覆盖一遍，刚发现有同学有这个问题，我们实验课的老师有发过视频讲过这个问题，所以发出来大家看一下。

覆盖之后就不会有报错了。