Connec to ROS-master on Another PC

[ShawnZhou997]

I am working on the ROS and run into an issue now.
After connecting to external ROS-master on another PC, parts of the Action Graph disappeared.
As is shown below.

In this way, I could not get the ROS topic JointCommand and JointStates from ROS-master.

In my .bashrc file, I added the codes as followed.
export ROS_IP=115.156.168.xxx
export ROS_MASTER_URI=http://***-Dell:11311

What can I do to solve it?

[ShawnZhou997]

Here’s the method I’ve tried but in vain

How to Change ROS_MASTER_URI of OmniIsaacRosBridge

I tried to change the ROS_MASTER_URI of OmniIsaacRosBridge in omni.isaac.ros_bridge.scripts.extension file so that i can connect to different host rather than the one running isaac sim(2022.2.0/2022.1.1) but isaacSim is overriding my choice by just taking the local host name. as shown here [image] while the master uri is [master_uri] It works well on a local machine running isaacSim and but can not connect to other host running ros master node.

[parmeggiani.alessio]

I got the same error sometimes, try using file->reopen, for me it fixed the issue

[ShawnZhou997]

@parmeggiani.alessio thk u for answering.
In my job, I imported the URDF and then added the Action Graph about ROS.
I reloaded the USD file but it didn’t work.
Do you mean rewriting the whole file or some other way?

[ShawnZhou997]

I solved it by rebuilding the whole Action Graph.
It seems to be the problems about the newly Release version 2023.1.
However, it should not be a problem caused by update in the Omniverse Engine.