/home/ubuntu/ros2_ws/src/beacon_positioning/src/tracker_position.cpp:46:59: error: expected ‘;’ at end of member declaration 46 | std::shared_ptr serial_port get_serial_port() { | ^~~~~~~~~~~ | ; /home/ubuntu/ros2_ws/src/beacon_positioning/src/tracker_position.cpp:46:87: error: ISO C++ forbids declaration of ‘get_serial_port’ with no type [-fpermissive] 46 | std::shared_ptr serial_port get_serial_port() { | ^ /home/ubuntu/ros2_ws/src/beacon_positioning/src/tracker_position.cpp:86:59: error: redeclaration of ‘std::shared_ptr BeaconPositioningPublisher::serial_port’ 86 | std::shared_ptr serial_port; // serial port for communicating with tracker | ^~~~~~~~~~~ /home/ubuntu/ros2_ws/src/beacon_positioning/src/tracker_position.cpp:46:59: note: previous declaration ‘std::shared_ptr BeaconPositioningPublisher::serial_port’ 46 | std::shared_ptr serial_port get_serial_port() { | ^~~~~~~~~~~ /home/ubuntu/ros2_ws/src/beacon_positioning/src/tracker_position.cpp: In member function ‘int BeaconPositioningPublisher::get_serial_port()’: /home/ubuntu/ros2_ws/src/beacon_positioning/src/tracker_position.cpp:47:12: error: cannot convert ‘std::shared_ptr’ to ‘int’ in return 47 | return serial_port; | ^~~~~~~~~~~ | | | std::shared_ptr make[2]: *** [CMakeFiles/tracker_position.dir/build.make:63: CMakeFiles/tracker_position.dir/src/tracker_position.cpp.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:78: CMakeFiles/tracker_position.dir/all] Error 2 make: *** [Makefile:141: all] Error 2