[ros-users] Failed to contact the master at robot_name: 11311

j2eegirl dp at zju.edu.cn
Mon Jul 5 08:04:18 UTC 2010

I run the beginner_turtle package. First, I run the command roscore. It seems
all right. But when running the talker and listener, the screen displays
Failed to contact the master at robot_name: 11311.
How to deal with it? Thank you.
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