ROS Start Gazebo Error (First time): Err] [REST.cc:205] Error in REST request

Problems encountered during ROS learning:

Err] [REST.cc:205] Error in REST request

Gazebo has been installed when ROS is installed. Use the following command to check whether the installation is successful, and open the gazebo simulation environment.

roslaunch gazebo_ros empty_world.launch

When opening gazebo in ROS for the first time, error will be report: Err] [REST.cc:205] Error in REST request

As shown in the figure below:

Solution:

It needs to be modified .ignition/fuel/config.yaml file

Open yaml file command:

sudo gedit ~/.ignition/fuel/config.yaml

Use # to comment out this code: url: https://api.ignitionfuel.org

Then add

url: https://api.ignitionrobotics.org

As shown in the following figure:

run the launch command again, and you will not see the above error warning.

roslaunch gazebo_ros empty_world.launch

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