STM32F429 project error: No such file or directory

[NHuy.1]

Hello, I'm getting started with stm32f429i. I built my project like the picture. The problem is when i build target, I had an error like the picture.

I Crtl+left click to the "stm32f4xx_sai.h" and it pop out

When i rebuid target it have the same error but with anorther source file. I have searched for the error but i found nothing. Please help me

[Imen.D]

You should make sure that the include paths are set up correctly and that the IDE can find the source and include files your are trying to compile.