CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /usr/bin/ld: CMakeFiles/test_package.dir/example1.cpp.o: in function `main': /home/conan/w/cci_PR-4032/8/8c67dddb-3ffd-4679-9e4c-09d4e14cec2f/recipes/cnpy/all/test_package/example1.cpp:24: undefined reference to `cnpy::npy_load(std::string)' /usr/bin/ld: /home/conan/w/cci_PR-4032/8/8c67dddb-3ffd-4679-9e4c-09d4e14cec2f/recipes/cnpy/all/test_package/example1.cpp:45: undefined reference to `cnpy::npz_load(std::string, std::string)' /usr/bin/ld: /home/conan/w/cci_PR-4032/8/8c67dddb-3ffd-4679-9e4c-09d4e14cec2f/recipes/cnpy/all/test_package/example1.cpp:48: undefined reference to `cnpy::npz_load(std::string)' /usr/bin/ld: CMakeFiles/test_package.dir/example1.cpp.o: in function `void cnpy::npz_save(std::string, std::string, double const*, std::vector > const&, std::string)': /home/conan/w/cci_PR-4032/.conan/data/cnpy/1.0/_/_/package/6884250f35cdd5373ff86a9eb6881703294f3c71/include/cnpy.h:188: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /usr/bin/ld: /home/conan/w/cci_PR-4032/.conan/data/cnpy/1.0/_/_/package/6884250f35cdd5373ff86a9eb6881703294f3c71/include/cnpy.h:200: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /usr/bin/ld: CMakeFiles/test_package.dir/example1.cpp.o: in function `void cnpy::npz_save(std::string, std::string, char const*, std::vector > const&, std::string)': /home/conan/w/cci_PR-4032/.conan/data/cnpy/1.0/_/_/package/6884250f35cdd5373ff86a9eb6881703294f3c71/include/cnpy.h:188: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /usr/bin/ld: /home/conan/w/cci_PR-4032/.conan/data/cnpy/1.0/_/_/package/6884250f35cdd5373ff86a9eb6881703294f3c71/include/cnpy.h:200: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /usr/bin/ld: CMakeFiles/test_package.dir/example1.cpp.o: in function `void cnpy::npz_save >(std::string, std::string, std::complex const*, std::vector > const&, std::string)': /home/conan/w/cci_PR-4032/.conan/data/cnpy/1.0/_/_/package/6884250f35cdd5373ff86a9eb6881703294f3c71/include/cnpy.h:188: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /usr/bin/ld: CMakeFiles/test_package.dir/example1.cpp.o:/home/conan/w/cci_PR-4032/.conan/data/cnpy/1.0/_/_/package/6884250f35cdd5373ff86a9eb6881703294f3c71/include/cnpy.h:200: more undefined references to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' follow clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [CMakeFiles/test_package.dir/build.make:84: bin/test_package] Error 1 make[1]: *** [CMakeFiles/Makefile2:76: CMakeFiles/test_package.dir/all] Error 2 make: *** [Makefile:84: all] Error 2 ERROR: cnpy/1.0 (test package): Error in build() method, line 11 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-4032/8/8c67dddb-3ffd-4679-9e4c-09d4e14cec2f/recipes/cnpy/all/test_package/build/f020d0801c4c7b71d63a74eed5c47880ddc89f46' '--' '-j3'