ubuntu在运行话题时编译出错

Question

CMake Error at ros_tutorials/roscpp_tutorials/CMakeLists.txt:16 (add_executable):
add_executable cannot create target "listener" because another target with
the same name already exists. The existing target is an executable created
in source directory "/home/yzt/catkin_ws/src/learning_communication". See
documentation for policy CMP0002 for more details.
Call Stack (most recent call first):
ros_tutorials/roscpp_tutorials/CMakeLists.txt:46 (rostutorial)

CMake Error at ros_tutorials/roscpp_tutorials/CMakeLists.txt:16 (add_executable):
add_executable cannot create target "talker" because another target with
the same name already exists. The existing target is an executable created
in source directory "/home/yzt/catkin_ws/src/learning_communication". See
documentation for policy CMP0002 for more details.
Call Stack (most recent call first):
ros_tutorials/roscpp_tutorials/CMakeLists.txt:46 (rostutorial)

Answer 1

各位大佬，这个怎么解决阿