md ncs
D:\>cd ncs
D:\ncs>west init -m github.com/.../sdk-nrf --mr v2.3.0
D:\ncs\nrf\samples>cd minimal_log_button_gpioe
D:\ncs\nrf\samples\minimal_log_button_gpioe>west build -b am_nrf52832
usage: west [-h] [-z ZEPHYR_BASE] [-v] [-V] <command> ...
west: error: argument <command>: invalid choice: 'build' (choose from 'init', 'update', 'list', 'manifest', 'diff', 'status', 'forall', 'help', 'config', 'topdir', 'selfupdate')