Solved
Problem with new version STM32CubeIDE ver1.5.1 and STM32CubeMX ver6.1.1 (fatal error: usb_device.h: No such file or directory)
Before that there was STM32CubeIDE ver1.4.0 STM32CubeMX ver6.0.0 everything was fine.
Installed STM32CubeIDE ver1.5.1 and STM32CubeMX ver6.1.1, there was an error when connecting USB_DEVICE.
Tried creating a project from scratch with nothing but USB_DEVICE. Gives an error message.
What to do?

