Why do I add the image transport ROS library to. Pro, but there is no related class member function definition in the display library? Didn't LIBS succeed?
lianbashou123 opened this issue · comments
Why do I add the image transport ROS library to. Pro, but there is no related class member function definition in the display library? Didn't LIBS succeed?
This is yet another generic ROS/C++ question. This is the last time I am going to answer your generic ROS questions. Please ask such questions at https://answers.ros.org and use the raw test instead of screenshots. In future, I will just close these kinds of issues without an answer.
If you read your error messages carefully, you will notice that it says undefined reference to class_loader::. This should tell you that the class_loader is not installed. You should be able to install all dependencies using rosdep. In any case, the package you are looking for can be installed via sudo apt install ros-${ROS_DISTRO}-class-loader.