Unable to locate package ros-noetic-yocs-msgs

As an AI language model, I don't have access to your system's package manager or repositories. However, the error message "Unable to locate package ros-noetic-yocs-msgs" suggests that the package "ros-noetic-yocs-msgs" is not available in the specified repository or it doesn't exist at all.

Here are some possible solutions you can try:

1. Check if the package name is correct. Make sure that you have typed the correct package name, including correct spelling and capitalization.

2. Check your package sources. Make sure that you have added the correct package repository to your sources list. You can try updating your package sources and then try again.

3. Try installing the package from source. If the package is not available in the repository, you can try downloading and building the package from source.

4. Contact the package maintainer. If none of the above solutions work, you can try contacting the package maintainer or the ROS community for help.