When I was compiling my workspace, this line came up on the screen. What could be the problem?

-- Generating .msg files for action nao_msgs/RunBehavior /home/dickson/catkin_ws/src/nao_robot/nao_msgs/action/RunBehavior.action
-- nao_msgs: 48 messages, 5 services
-- +++ processing catkin package: 'nao_driver'
-- ==> add_subdirectory(nao_robot/nao_driver)
-- Could not find NAOqi's alcommon
-- Could not find NAOqi's alvision
-- Could not find NAOqi's alproxies
-- Could not find NAOqi's alerror
-- Could not find NAOqi's alvalue
-- Cannot find NAOqi C++ sdk; C++ nodes will NOT be built