Why can't I build my demo project?
I have a STM32F407VG DISCOVERY kit and I'm trying to load a project from
C:\Users\<user>\STM32Cube\Repository\STM32Cube_FW_F4_V1.25.0\Projects
I'm using File->"Open Projects from Existing System".
In the Project Explorer it shows:

But the "hammer" is grayed-out so I cannot compile the code.
Is there something else I need to do.
I noticed that projects which I can compile have an IDE symbol will let me build, eg:

I can build BGT_Part but not UART.
thank you,
Scott
