ros yp-spurについて

Question

yp spurというロボット制御(imu オドメトリを司るシステムのエラー)で

[ERROR] [1581171032.383509382]: Use /ad/ad0 (ad/ad0) topic instead of /ypspur_ros/ad/ad0 (/ad/ad0)
[ERROR] [1581171032.391500414]: Use /ad/ad1 (ad/ad1) topic instead of /ypspur_ros/ad/ad1 (/ad/ad1)
[ERROR] [1581171032.395316212]: Use /ad/ad2 (ad/ad2) topic instead of /ypspur_ros/ad/ad2 (/ad/ad2)
[ERROR] [1581171032.400800106]: Use /ad/ad3 (ad/ad3) topic instead of /ypspur_ros/ad/ad3 (/ad/ad3)
[ERROR] [1581171032.405548826]: Use /ad/ad4 (ad/ad4) topic instead of /ypspur_ros/ad/ad4 (/ad/ad4)
[ERROR] [1581171032.409298540]: Use /ad/ad5 (ad/ad5) topic instead of /ypspur_ros/ad/ad5 (/ad/ad5)
[ERROR] [1581171032.413691320]: Use /ad/ad6 (ad/ad6) topic instead of /ypspur_ros/ad/ad6 (/ad/ad6)
[ERROR] [1581171032.422003080]: Use /ad/ad7 (ad/ad7) topic instead of /ypspur_ros/ad/ad7 (/ad/ad7)

と表示されます.どなたかRoS関係で詳しい人はご教授願えますか？