Failed to contact master at [localhost:11311]
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我的一台笔记本自从改过网络设置以后,出现运行roscore报错的问题,网上的解决办法都试了但是没有效果,今天在ros.wiki的一条评论里找到了解决问题的方法,现在记录下来,以供备用。
cd /etc
sudo gedit hosts
原文件如下:
127.0.0.1 zz
127.0.1.1 zz-Ideapad-V460
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
将127.0.0.1后改为localhost,即:
127.0.0.1 localhost
127.0.1.1 zz-Ideapad-V460
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
保存,重启terminal,问题解决。附上原wiki链接
曾经主要认为是bashrc文件的问题,但后来发现问题不在那,但因为这个也确实了解了一些有关bashrc文件的知识
多次在bashrc中执行source只会执行最后一个source,一般只添加一句
source /opt/ros/indigo/setup.bash 即可。在文件最后添加
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:/home/exbot/catkin_ws/src:/opt/ros/indigo/share
export ROS_HOSTNAME=localhost
export ROS_MASTER_URI=http://localhost:11311
- Failed to contact master at [localhost:11311]
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