ROS Bridge connects but throws an error: unknown error handler name 'rosmsg'

[yohannes-taye]

Here is my problem:
I have Ubuntu 14 setup on a VM and Unity 2019.4 on Windows. I have cloned the repo and started following the tutorials. Everything went well with setting up ROS, Turtle bot, and Gazebo. It worked till I reached the part of the tutorial 2.1 Transfer URDF from ROS to Unity. On the Unity side, this is what I get

While on the ros side it shows the following error

At this point, I'm stuck and don't know what else to try. I have looked at several of the issues on this repo, tried the proposed solutions but the issue still persists.

[berkayalpcakal]

Hello @yohannes-taye ,

I have searched this issue on web, it seems like this issue is related to your ROS environment on your Ubuntu. Here are some suggestions that I found;

• sudo apt-get update && sudo apt-get upgrade
• sudo apt install ros-$ROS_DISTRO-rosbridge-suite
• sudo apt install ros-$ROS_DISTRO-genpy

I hope this helps.

[yohannes-taye]

Thank you so much @berkayalpcakal!! That fixed my issue :)