Hi,
Probably the experts at the TI-RTOS will be more knowledgeable than I, but it is possible the example project may be somehow corrupt or require running "Clean" before building it (some files may have been created with a different version of CCS, SYSBIOS, XDC, etc.) - I have seen that happen before, where some apparently unexplainable issues with configuro are caused by some inherited files, and I usually delete (or create a backup copy) of the output directory (typically Debug or Release).
One additional detail: what is the example project you are importing and trying to build? I wonder if I would be able to reproduce it here.
Regards,
Rafael