Код: Выделить всё
ros2_ws$ colcon build --packages-select my_cpp_pkg Starting >>> my_cpp_pkg --- stderr: my_cpp_pkg
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/11/../../../x86_64-linux-gnu/Scrt1.o: in function _start': (.text+0x1b): undefined reference to main' collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/cpp_node.dir/build.make:151: cpp_node] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:137: CMakeFiles/cpp_node.dir/all] Error 2
gmake: *** [Makefile:146: all] Error 2
Failed
Подробнее здесь: [url]https://stackoverflow.com/questions/78499492/ros2-cpp-file-colcon-build-is-getting-failed-all-the-time[/url]