Closed mohamed1915 closed 1 year ago
Which is the error and how can we reproduce it? Also, please open issues in micro-ROS Agent repo if you are using micro-ROS Agent, not in XRCE-DDS Agent.
The error is in the title, it shows "Error while starting IPvX agent!". Concerning your second point I found that this error message exits in the function launch_agent() in the file ArgumentParser.hpp in the XRCE-DDS Agent. Maybe I'm wrong, but does that not mean the issue is more with XRCE? what can cause this error?
Do you have this error if you launch ros2 run micro_ros_agent micro_ros_agent udp4 --port 8888
?
I launch it with a code cmd=['micro-ros-agent', 'udp4', '--port', '8888' ] which I think is equivalent.
Could you test if there is an error if you launch ros2 run micro_ros_agent micro_ros_agent udp4 --port 8888
?
I installed the micro ros agent with snap so I don't have a ros package to run from the ws, is this wrong, am I missing sth?
snap is kind of outdated and unsupported for micro-ROS Agent due to problems with accessing serial ports and shared memory volumes.
Consider using dockers or binary distributions: https://docs.vulcanexus.org/en/latest/rst/installation/linux_binary_installation.html
I will remove the snap installed version and install using binaries and retest and see and let you know, thank you
Hi @pablogs9 , I am also not able to start IPvX agent from micro-ROS, please help. I followed Step 8 on https://medium.com/@SameerT009/connect-esp32-to-ros2-foxy-5f06e0cc64df . Thank you.
achyut@achyutu:~/microros_ws$ ros2 run micro_ros_agent micro_ros_agent udp4 --port 8888
[1676560888.406331] error | UDPv4AgentLinux.cpp | init | bind error | port: 8888, errno: 98
Error while starting IPvX agent!
[1676560888.406597] info | UDPv4AgentLinux.cpp | fini | server stopped | port: 8888
achyut@achyutu:~/microros_ws$
I was able to progress from the 'Error while starting IPvX agent!' , by killing/closing the process using that socket as suggested in https://stackoverflow.com/questions/4465959/python-errno-98-address-already-in-use But I am not able to continue, as I only see the bellow message in terminal and it doesn't progress(blocker now). Please suggest if I need to create another issue or if I can follow up in this same issue. Also please note my error was 'errno: 98 Error while starting IPvX agent!' which got resolved by solving problem of Address/Socket already in use. Thank you.
achyut@achyutu:~/microros_ws$ ros2 run micro_ros_agent micro_ros_agent udp4 --port 8888
[1676565117.056567] info | UDPv4AgentLinux.cpp | init | running... | port: 8888
[1676565117.057040] info | Root.cpp | set_verbose_level | logger setup | verbose_level: 4
My above remaining issue of not establishing the session with Microcontroller(ESP32 in my case) is resolved. I just had to press the 'Reset' button in ESP32 and it started establishing session. I subscribed to 'freertos_int32_publisher' in another terminal and I started receiving message/data' Thanks
achyut@achyutu:~/microros_ws$ ros2 run micro_ros_agent micro_ros_agent udp4 --port 8888
[1676565117.056567] info | UDPv4AgentLinux.cpp | init | running... | port: 88
[1676565117.057040] info | Root.cpp | set_verbose_level | logger setup | verbose_level: 4
[1676566660.628553] info | Root.cpp | create_client | create | client_key: 0x2366888D, session_id: 0x81
[1676566660.628806] info | SessionManager.hpp | establish_session | session established | client_key: 0x2366888D, address: 192.168.0.126:52712
[1676566660.663359] info | ProxyClient.cpp | create_participant | participant created | client_key: 0x2366888D, participant_id: 0x000(1)
[1676566660.676908] info | ProxyClient.cpp | create_topic | topic created | client_key: 0x2366888D, topic_id: 0x000(2), participant_id: 0x000(1)
[1676566660.685885] info | ProxyClient.cpp | create_publisher | publisher created | client_key: 0x2366888D, publisher_id: 0x000(3), participant_id: 0x000(1)
[1676566660.695091] info | ProxyClient.cpp | create_datawriter | datawriter created | client_key: 0x2366888D, datawriter_id: 0x000(5), publisher_id: 0x000(3)
Closing as issue looks resolved, reopen if needed
I'm running a multiple part simulation with gazebo ros2 and and micro ros agent.
I launch the agent with : cmd=['micro-ros-agent', 'udp4', '--port', '8888' ]
Is the error for the DDS or from another component? do you have an idea of how I can I get more info about the error?