Trying to compile kobuki_driver C++ library without ROS

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Hello all,

I'm trying to follow this guide to compile and run the pure C++ kobuki_driver library on Ubuntu 18.04.2 LTS and I've run into an issue with catkin_make_isolated --installwhen trying to prepare the catkin workspace.

Here's the error that I'm getting when I run the command above:

Base path: /home/josephkim/Desktop/csci370/swig_test/kobuki_core  
Source space: /home/josephkim/Desktop/csci370/swig_test/kobuki_core/src  
Build space: /home/josephkim/Desktop/csci370/swig_test/kobuki_core/build_isolated  
Devel space: /home/josephkim/Desktop/csci370/swig_test/kobuki_core/devel_isolated  
Install space: /home/josephkim/Desktop/csci370/swig_test/kobuki_core/install_isolated  
WARNING: Metapackage "kobuki_core" must buildtool_depend on catkin.  
WARNING: Metapackage "kobuki_core" should not have other dependencies besides a buildtool_depend on catkin and exec_depends.  
Traceback (most recent call last):  
File "/home/josephkim/Desktop/csci370/swig_test/kobuki_core/src/catkin/bin/catkin_make_isolated", line 160, in <module>  
    main()  
  File "/home/josephkim/Desktop/csci370/swig_test/kobuki_core/src/catkin/bin/catkin_make_isolated", line 156, in main  
    override_build_tool_check=opts.override_build_tool_check,  
  File "/home/josephkim/Desktop/csci370/swig_test/kobuki_core/src/catkin/bin/../python/catkin/builder.py", line 951, in build_workspace_isolated  
    packages = find_packages(sourcespace, exclude_subspaces=True)  
  File "/usr/lib/python2.7/dist-packages/catkin_pkg/packages.py", line 98, in find_packages  
    raise RuntimeError('\n'.join(duplicates))  
RuntimeError: Multiple packages found with the same name "ecl_mobile_robot":  
- ecl_core/ecl_mobile_robot  
- ecl_navigation/ecl_mobile_robot

Let me know if more specific information is needed; any help would be appreciated. Thanks!