ROS Unable to contact my own server at [http://eric-ms-7a54:42579/]

本文链接：https://blog.youkuaiyun.com/w5688414/article/details/118045339

今天在使用ros环境的时候出现了下面的问题：

➜  ~ roscore      
... logging to /home/eric/.ros/log/4f4e2e38-d093-11eb-85c4-0242323584ca/roslaunch-eric-ms-7a54-2130.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

Unable to contact my own server at [http://eric-ms-7a54:42579/].
This usually means that the network is not configured properly.

A common cause is that the machine cannot connect to itself.  Please check
for errors by running:

	ping eric-ms-7a54

For more tips, please see

	http://www.ros.org/wiki/ROS/NetworkSetup

The traceback for the exception was written to the log file

解决方法

export ROS_HOSTNAME=localhost
export ROS_MASTER_URI=http://localhost:11311

结果跑通了

➜  ~ roscore                                     
... logging to /home/eric/.ros/log/eed4c4da-d093-11eb-85c4-0242323584ca/roslaunch-eric-ms-7a54-6906.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://localhost:34153/
ros_comm version 1.12.17


SUMMARY
========

PARAMETERS
 * /rosdistro: kinetic
 * /rosversion: 1.12.17

NODES

auto-starting new master
process[master]: started with pid [6926]
ROS_MASTER_URI=http://localhost:11311/

setting /run_id to eed4c4da-d093-11eb-85c4-0242323584ca
process[rosout-1]: started with pid [6940]
started core service [/rosout]