These Tutorials are very helpful and thank you a lot for the explanation, But I have a huge problem with learning ROS that everything and every online Tutorial just keeps telling me to uncomment this and copy paste that there and they keep removing and adding lines to files that I genuinely end up not knowing how all of this is connected, It frustrates me alot when I'm learning ROS
That's a very understandable frustration, and is a common experience for many people learning ROS. We're trying to find the right balance between teaching how these various systems are connected and not losing beginner students in an overwhelming amount of complexity. Unfortunately, this sometimes means hand-waving past a routine task so that we can get to the current topic in a timely manner, hopeful that we'll get a chance in the future to come back to fill in the gaps. Thanks for the feedback, though! We're certainly not done iterating on these lessons, and these are exactly the kinds of things we're trying to improve with each new version.
hi, I am using python and vscode to code and I have a problem with custom messages. I have done every thing in order and my custom message has been already created but when I want to import it in my code, it gives an error: " can not Import "message_name" from "project.msg". can you help me please
You can double check that Python message generation has succeeded by checking for a corresponding python file in your workspace's devel folder. That will look something like my_workspace/devel/lib/python3/dist-packages/my_msg_package/msg/_MyMsgType.py Also, make sure you're source both the global setup script and your workspace setup script in the terminal session you're running your python code in. This is the most common problem resulting in the error you posted. (source /opt/ros/noetic/setup.sh && source my_workspace/devel/setup.sh)
@@robojacketstraining6059 Thanks for your response. I am using mac and the conda environment. messages are generated correctly and I sourced the workspace. but I do not know how to source the global setup on that, because I can not find it !!!
Really good lectures, thanks
these videos are well-explained, not too long and not boring. Good job
Tq u
Wonderful set of training videos. Thanks for creating and sharing them.
13:45 my sequence number wasn't counting up.
I guess it's because the talker.cpp implementation at 10:34 is incomplete with some message setup
These Tutorials are very helpful and thank you a lot for the explanation, But I have a huge problem with learning ROS that everything and every online Tutorial just keeps telling me to uncomment this and copy paste that there and they keep removing and adding lines to files that I genuinely end up not knowing how all of this is connected, It frustrates me alot when I'm learning ROS
That's a very understandable frustration, and is a common experience for many people learning ROS. We're trying to find the right balance between teaching how these various systems are connected and not losing beginner students in an overwhelming amount of complexity. Unfortunately, this sometimes means hand-waving past a routine task so that we can get to the current topic in a timely manner, hopeful that we'll get a chance in the future to come back to fill in the gaps.
Thanks for the feedback, though! We're certainly not done iterating on these lessons, and these are exactly the kinds of things we're trying to improve with each new version.
@9:22
hi, I am using python and vscode to code and I have a problem with custom messages. I have done every thing in order and my custom message has been already created but when I want to import it in my code, it gives an error: " can not Import "message_name" from "project.msg". can you help me please
You can double check that Python message generation has succeeded by checking for a corresponding python file in your workspace's devel folder. That will look something like my_workspace/devel/lib/python3/dist-packages/my_msg_package/msg/_MyMsgType.py
Also, make sure you're source both the global setup script and your workspace setup script in the terminal session you're running your python code in. This is the most common problem resulting in the error you posted. (source /opt/ros/noetic/setup.sh && source my_workspace/devel/setup.sh)
@@robojacketstraining6059 Thanks for your response. I am using mac and the conda environment. messages are generated correctly and I sourced the workspace. but I do not know how to source the global setup on that, because I can not find it !!!