System Workbench for STM32

Hi,

thanks RA for his help. My "toogle example" work now.

But I tried another example: Audio_Playback. They are some directories:

STM32_USB_Device_Library
STM32_USB_HOST_Library
STM32_USB_OTG_Driver
Utilities

I copy them to my project directory and set them as "Source Folder". Then I copy some file to directory "src" and "inc" (main.c, audio_sample.c, main.h,...).

I built the project. Is appeared: fatal error: stm32f4_discovery.h: No such file or directory

But the file is located in directory Utilities/STM32F4-Discovery in my project. So I added to "Includes" path Utilities/STM32F4-Discovery. But it did not help. Error remained the same.

Where is the problem? What am I doing wrong?