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justagist / franka_ros_interface

A ROS/Python API for controlling and managing the Franka Emika Panda robot (real and simulated).
http://justagist.github.io/franka_ros_interface
Apache License 2.0
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RLException:ERROR : cloud not contact master [http://172.27.183.229:11311] #14

Closed dinnno closed 4 years ago

dinnno commented 4 years ago

Hello, I am a student who study using franka panda robot I am building and using your package well. but, when i tried to use ./franka.sh master in robot computer, I got an error

actually, i did set up ./franka.sh file well as following your documentary. It is revised franka.sh file

=========================================

===== EDIT THESE VALUES AS REQUIRED =====

=========================================

----- EDIT THIS TO MATCH THE IP OF THE FRANKA ROBOT CONTROLLER IN THE NETWORK

FRANKA_ROBOT_IP="172.27.183.230"

----- EDIT THIS TO MATCH YOUR IP IN THE NETWORK

your_ip="172.27.183.229"

----- EDIT THIS TO MATCH THE IP OF THE MAIN ROS MASTER PC (CONNECTED TO THE FRANKA CONTROLLER)

ROS_MASTER_IP="http://localhost:11311/"

ros_version="melodic"

=========================================

=========================================

=========================================

It is part of the contents of the terminal.

NODES / base_to_link0 (tf/static_transform_publisher) controllers (controller_manager/spawner) demo_scene_loader (franka_moveit/create_demo_planning_scene.py) franka_control (franka_interface/custom_franka_control_node) franka_gripper (franka_gripper/franka_gripper_node) joint_state_desired_publisher (joint_state_publisher/joint_state_publisher) joint_state_publisher (joint_state_publisher/joint_state_publisher) load_controllers (controller_manager/controller_manager) move_group (moveit_ros_move_group/move_group) robot_state_publisher (robot_state_publisher/robot_state_publisher) state_controller_spawner (controller_manager/spawner) world_to_base (tf/static_transform_publisher)

auto-starting new master process[master]: started with pid [10444] RLException: ERROR: could not contact master [http://172.27.183.229:11311] The traceback for the exception was written to the log file [master] killing on exit

The odd thing is, I got a lot of ros node list you made, but soon the connection is automatically shut down.

I will wait your answer. Have a nice day and thank you a lot

justagist commented 4 years ago

This is not an issue with the package. It seems the IP is not set for ROS properly. Make sure you set the right IP of your machine for the your_ip variable in the file. Also try setting the same value for ROS_MASTER_IP. Then run ./franka.sh master and try again. To make sure the variables are configured correctly, you can try running roscore command. If it is running properly, you should also be able to launch the franka_ros_interface driver node without issue.