Undefined reference to `GeographicLib::UTMUPS::Forward(...)

edit

I am running ROS melodic on Ubuntu 18.04. I installed robot_localization via: sudo apt-get install ros-melodic-robot-localization

I am trying to use the RobotLocalization::NavsatConversions::LLtoUTM function from the robot_localization function but I am getting the following error:

CMakeFiles/gps_waypoint_mapping.dir/src/gps_waypoint_mapping.cpp.o: In function RobotLocalization::NavsatConversions::LLtoUTM(double, double, double&, double&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, double&)':
gps_waypoint_mapping.cpp:(.text+0x64): undefined reference to GeographicLib::UTMUPS::Forward(double, double, int&, bool&, double&, double&, double&, double&, int, bool)'
gps_waypoint_mapping.cpp:(.text+0xa1): undefined reference to `GeographicLib::MGRS::Forward(int, bool, double, double, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)'

The snippet of code from gps_waypoint_mapping.cpp that uses LLtoUTM is:

geometry_msgs::PointStamped latLongtoUTM(double lati_input, double longi_input)
{

    double utm_x = 0, utm_y = 0;
    geometry_msgs::PointStamped UTM_point_output;

    //convert lat/long to utm
    RobotLocalization::NavsatConversions::LLtoUTM(lati_input, longi_input, utm_y, utm_x, utm_zone);

    //Construct UTM_point and map_point geometry messages
    UTM_point_output.header.frame_id = "utm";
    UTM_point_output.header.stamp = ros::Time(0);
    UTM_point_output.point.x = utm_x;
    UTM_point_output.point.y = utm_y;
    UTM_point_output.point.z = 0;

    return UTM_point_output;
}

I am pretty sure that GeographicLib is one of the dependencies of robot_localization so it was installed alongside. I ran rosdep install --from-paths src --ignore-src -r -y aswell to make sure.

Here is my CMakeLists.txt, sorry I am new to ROS so I didnt really know what to include and what not to include:

cmake_minimum_required(VERSION 3.0.3)
project(outdoor_waypoint_nav)

set(CMAKE_CXX_FLAGS "-std=c++11")
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_C_STANDARD 11)


find_package(catkin REQUIRED COMPONENTS
  roscpp
  rospy
  std_msgs
  tf
 roslib
 roslaunch
)

catkin_package()
roslaunch_add_file_check(launch)

include_directories(
  ${catkin_INCLUDE_DIRS}
)
add_executable(gps_waypoint src/gps_waypoint.cpp)
#add_executable(gps_waypoint_continuous src/gps_waypoint_continuous.cpp)
add_executable(gps_waypoint_continuous1 src/gps_waypoint_continuous1.cpp)
add_executable(gps_waypoint_continuous2 src/gps_waypoint_continuous2.cpp)
add_executable(gps_waypoint_mapping src/gps_waypoint_mapping.cpp)
add_executable(collect_gps_waypoints src/collect_gps_waypoints.cpp)
add_executable(plot_gps_waypoints src/plot_gps_waypoints.cpp)
add_executable(calibrate_heading src/calibrate_heading.cpp)
add_executable(safety_node src/safety_node.cpp)
add_executable(switch_controllers src/switch_controllers.cpp)

target_link_libraries(gps_waypoint ${catkin_LIBRARIES})
# target_link_libraries(gps_waypoint_continuous        ${catkin_LIBRARIES})
target_link_libraries(gps_waypoint_continuous1     ${catkin_LIBRARIES})
target_link_libraries(gps_waypoint_continuous2 ${catkin_LIBRARIES})
target_link_libraries(gps_waypoint_mapping ${catkin_LIBRARIES})
target_link_libraries(collect_gps_waypoints ${catkin_LIBRARIES})
target_link_libraries(plot_gps_waypoints ${catkin_LIBRARIES})
target_link_libraries(calibrate_heading ${catkin_LIBRARIES})
target_link_libraries(safety_node ${catkin_LIBRARIES})
target_link_libraries(switch_controllers ${catkin_LIBRARIES})

install(DIRECTORY  launch
  DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
)