Resolved Problem importing custom ROS msgs

Hello,

I am having issues with important customer msgs and srvs for ROS2. This issue only appeared recently. Basically, I go through the process outlined in https://github.com/Unity-Technologies/ROS-TCP-Connector/blob/main/MessageGeneration.md.

In my xml file I have the package named ros_test. So everything appears fine at first. I get a RosMessage folder that contains RosTest/srv and RosTest/msg. The files are also recognized by my C# scripts for when I go to use the new msg types.

However, when I go to actually run the simulation I get the following error:
SysCommand.publish - Unknown message class 'ros_test/Vector3'
UnityEngine.Debug:LogError (object)
Unity.Robotics.ROSTCPConnector.ROSConnection:ReceiveSysCommand (string,string) (at Library/PackageCache/com.unity.robotics.ros-tcp-connector@c27f00c6cf/Runtime/TcpConnector/ROSConnection.cs:680)
Unity.Robotics.ROSTCPConnector.ROSConnection:Update () (at Library/PackageCache/com.unity.robotics.ros-tcp-connector@c27f00c6cf/Runtime/TcpConnector/ROSConnection.cs:587)

I was not getting this error when I did testing with this a month ago. It seems to be looking for a class called ros_test, that it can't find.

Can anyone help with this? It's become a major issue for me.
I also attempted to upgrade to ROSTCPConnector and Ednpoint 0.7 from 0.6. Had the issue in both versions.

 

So I have found a solution to this error. It actually has to do with the ROS2 module, not Unity. Basically, the msg I was trying to create was left out of my CMakeBuild list. So as a result, the Ros2Endpoint server was not able to find this message type.

So steps to fix if you receive the error in Unity "unknown message class '<your class name'" is
Go you your ROS2 package, double check that you have included your message in the CMakeList
Rebuild the package with colcon build.
Resource the package.
Now run your Ros2endpoint and things should be working properly