Examples reject GPIO values as invalid

[jpelletier]

On the Dragonboard 410c
Examples gpio_cpp and gpio_advanced_cpp reject all the GPIO values as invalid

Compiled examples are in build/examples/c++.
The 2 examples using GPIOs are gpio_cpp and gpio_advanced_cpp. All values that we put for the GPIO are rejected even when running with sudo or sudo su.

linaro@linaro:~/Documents/src/96boards/mraa/build/examples/c++$ sudo ./gpio_cpp terminate called after throwing an instance of 'std::invalid_argument'
what(): Invalid GPIO pin specified
Aborted

[TigerVersusT]

Same issue