Ken,
We moved the rosinstall file for our repositories to a new Yujin Robot
Github account. Please update the URL of the rosinstall file.
New location:
https://raw.github.com/yujinrobot/yujin_release/master/yujin-ros-pkg.rosinstall
(Old location:
https://raw.github.com/stonier/ros-repos/master/yujin-ros-pkg.rosinstall)

Thank you!

Regards,
Marcus Liebhardt

-- 
Dipl.-Ing. (M.Sc.) Marcus Liebhardt
Control Engineer
Yujin Robot
ÁÖ¼Ò: ´ëÇѹα¹ ¼­¿ï½Ã ±Ýõ±¸ °¡»êµ¿ 345-30 ³²¼ºÇÁ¶óÀÚ #601, 153-023.
Address: Door #601, Namsung-Plaza, 345-30 Gasan-dong, Guemcheon-gu, Seoul,
153-023, Republic of Korea
Website: http://www.yujinrobot.com
Email: marcus.liebhardt@yujinrobot.com
Phone: +82-2-2104-0435