Multiple definition of main error in catkin_make

catkin_make

asked 2016-01-31 09:16:39 -0500

user23fj239
748 ●26 ●37 ●47

What am I doing wrong. I checked this but the add_executables seem to be ok. This is my cmakeList.txt
If i only use the server and client example it error is the same. Did I mix something up?

    [ 94%] Built target listener
    Scanning dependencies of target add_two_ints_server
    [100%] Building CXX object test_my_env/CMakeFiles/add_two_ints_server.dir/src/add_two_ints_server.cpp.o
    Linking CXX shared library /home/baum/catkin_ws/devel/lib/libmy_test_lib.so
    CMakeFiles/my_test_lib.dir/src/listener.cpp.o: In function `main':
    listener.cpp:(.text+0x15c): multiple definition of `main'
    CMakeFiles/my_test_lib.dir/src/talker.cpp.o:talker.cpp:(.text+0x0): first defined here
    CMakeFiles/my_test_lib.dir/src/add_two_ints_server.cpp.o: In function `main':
    add_two_ints_server.cpp:(.text+0x2b5): multiple definition of `main'
    CMakeFiles/my_test_lib.dir/src/talker.cpp.o:talker.cpp:(.text+0x0): first defined here
    CMakeFiles/my_test_lib.dir/src/add_two_ints_client.cpp.o: In function `main':
    add_two_ints_client.cpp:(.text+0x0): multiple definition of `main'
    CMakeFiles/my_test_lib.dir/src/talker.cpp.o:talker.cpp:(.text+0x0): first defined here
    collect2: error: ld returned 1 exit status
    make[2]: *** [/home/baum/catkin_ws/devel/lib/libmy_test_lib.so] Error 1
    make[1]: *** [test_my_env/CMakeFiles/my_test_lib.dir/all] Error 2
    make[1]: *** Waiting for unfinished jobs....

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CMake Error at test_my_env/CMakeLists.txt:61 (target_link_libraries): Attempt to add link library "/opt/ros/jade/lib/libroscpp.so" to target "add_two_ints_server" which is not built in this directory.

## build your library, listing all required C++ source files(no headers) #set(MY_TEST_LIB_SRC # src/talker.cpp # src/listener.cpp # src/add_two_ints_server.cpp # src/add_two_ints_client.cpp) ## my library export #add_library(my_test_lib ${MY_TEST_LIB_SRC}) ## my library depends on #target_link_libraries(my_test_lib # ${catkin_LIBRARIES} #catkin libraries # ${Boost_LIBRARIES}) #additional non catkin libraries #add_dependencies(my_test_lib ${catkin_EXPORTED_TARGETS}) ## Libraries are installed in a lib/ directory shared by all packages in entire ROS distro #install(TARGETS my_test_lib # ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION} # LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION} # RUNTIME DESTINATION ${CATKIN_GLOBAL_BIN_DESTINATION})

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