CMake error with the find_package sample script

[captain-yoshi]

Building error on Ubuntu 20.04 when running the find_package sample script.

CMake Error at CMakeLists.txt:4 (find_package):
  Found package configuration file:

    /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4conf/c4confConfig.cmake

  but it set c4conf_FOUND to FALSE so package "c4conf" is considered to be
  NOT FOUND.  Reason given by package:

  The following imported targets are referenced, but are missing: c4fs::c4fs
  ryml::ryml c4core::c4core

Full console output

``` bash + BUILD_TYPE=Release + '[' 0 -ge 1 ']' ++ cd ../.. ++ pwd + C4CONF_DIR=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf ++ pwd + THIS_DIR=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package + BUILD_DIR=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release + mkdir -p /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release + C4CONF_BUILD_DIR=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-build + C4CONF_INSTALL_DIR=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install + cmake -S /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf -B /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-build -DCMAKE_INSTALL_PREFIX=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install -DCMAKE_BUILD_TYPE=Release -- The CXX compiler identification is GNU 9.4.0 -- Check for working CXX compiler: /usr/lib/ccache/c++ -- Check for working CXX compiler: /usr/lib/ccache/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- c4conf: using C++ standard: C++11 -- c4conf: setting C++ standard: 11 -- c4conf: setting C++ standard required: ON -- c4conf: importing subproject c4core (SUBDIRECTORY)... /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/ext/c4core -- c4core: using C++ standard: C++11 -- c4conf: importing subproject c4fs (SUBDIRECTORY)... /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/ext/c4fs -- c4fs: using C++ standard: C++11 -- c4conf: importing subproject ryml (SUBDIRECTORY)... /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/ext/rapidyaml -- ryml: using C++ standard: C++11 -- c4conf: packing the project: TYPE;LIBRARY -- c4conf: cpack tag: v0.1.0-7-g8bccf7b-master -- Configuring done -- Generating done -- Build files have been written to: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-build + cmake --build /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-build --parallel --config Release Scanning dependencies of target c4core [ 26%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/char_traits.cpp.o [ 26%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/error.cpp.o [ 26%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/base64.cpp.o [ 26%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/format.cpp.o [ 26%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/language.cpp.o [ 31%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/memory_util.cpp.o [ 36%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/utf.cpp.o [ 42%] Building CXX object subprojects/c4core/build/CMakeFiles/c4core.dir/src/c4/memory_resource.cpp.o [ 47%] Linking CXX static library libc4core.a [ 47%] Built target c4core Scanning dependencies of target c4fs Scanning dependencies of target ryml [ 52%] Building CXX object subprojects/c4fs/build/CMakeFiles/c4fs.dir/src/c4/fs/fs.cpp.o [ 57%] Building CXX object subprojects/ryml/build/CMakeFiles/ryml.dir/src/c4/yml/common.cpp.o [ 63%] Building CXX object subprojects/ryml/build/CMakeFiles/ryml.dir/src/c4/yml/preprocess.cpp.o [ 68%] Building CXX object subprojects/ryml/build/CMakeFiles/ryml.dir/src/c4/yml/node.cpp.o [ 73%] Building CXX object subprojects/ryml/build/CMakeFiles/ryml.dir/src/c4/yml/parse.cpp.o [ 78%] Building CXX object subprojects/ryml/build/CMakeFiles/ryml.dir/src/c4/yml/tree.cpp.o [ 84%] Linking CXX static library libc4fs.a [ 84%] Built target c4fs [ 89%] Linking CXX static library libryml.a [ 89%] Built target ryml Scanning dependencies of target c4conf [ 94%] Building CXX object CMakeFiles/c4conf.dir/src/c4/conf/conf.cpp.o [100%] Linking CXX static library libc4conf.a [100%] Built target c4conf + cmake --build /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-build --config Release --target install [ 47%] Built target c4core [ 78%] Built target ryml [ 89%] Built target c4fs [100%] Built target c4conf Install the project... -- Install configuration: "Release" -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/libc4conf.a -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/conf/conf.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/conf/export.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4conf/c4confTargets.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4conf/c4confTargets-release.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4conf/c4confConfig.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4conf/c4confConfigVersion.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/libc4core.a -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/allocator.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/base64.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/blob.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/bitmask.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/charconv.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/c4_pop.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/c4_push.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/char_traits.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/common.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/compiler.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/config.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/cpu.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/ctor_dtor.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/dump.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/enum.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/error.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/export.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/format.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/hash.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/language.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/memory_resource.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/memory_util.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/platform.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/preprocessor.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/restrict.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/span.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/std.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/std_fwd.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/string.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/string_fwd.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/tuple.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/vector.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/std/vector_fwd.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/substr.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/substr_fwd.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/szconv.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/type_name.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/types.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/unrestrict.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/utf.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/windows.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/windows_pop.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/windows_push.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/ext/debugbreak/debugbreak.h -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/ext/rng/rng.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/ext/sg14/inplace_function.h -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/ext/fast_float.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/ext/fast_float_all.h -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/c4core.natvis -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4core/c4coreTargets.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4core/c4coreTargets-release.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4core/c4coreConfig.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4core/c4coreConfigVersion.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/libc4fs.a -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/fs/export.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/fs/fs.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4fs/c4fsTargets.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4fs/c4fsTargets-release.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4fs/c4fsConfig.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4fs/c4fsConfigVersion.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/libryml.a -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/ryml.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/ryml_std.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/detail/checks.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/detail/parser_dbg.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/detail/print.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/detail/stack.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/common.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/emit.def.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/emit.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/export.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/node.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/parse.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/preprocess.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/std/map.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/std/std.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/std/string.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/std/vector.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/tree.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/writer.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/c4/yml/yml.hpp -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/include/ryml.natvis -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/ryml/rymlTargets.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/ryml/rymlTargets-release.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/ryml/rymlConfig.cmake -- Installing: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/ryml/rymlConfigVersion.cmake + cmake -S /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package -B /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release -DCMAKE_PREFIX_PATH=/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install -DCMAKE_BUILD_TYPE=Release -- The CXX compiler identification is GNU 9.4.0 -- Check for working CXX compiler: /usr/lib/ccache/c++ -- Check for working CXX compiler: /usr/lib/ccache/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done CMake Error at CMakeLists.txt:4 (find_package): Found package configuration file: /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/c4conf-install/lib/cmake/c4conf/c4confConfig.cmake but it set c4conf_FOUND to FALSE so package "c4conf" is considered to be NOT FOUND. Reason given by package: The following imported targets are referenced, but are missing: c4fs::c4fs ryml::ryml c4core::c4core -- Configuring incomplete, errors occurred! See also "/home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release/CMakeFiles/CMakeOutput.log". + cmake --build /home/captain-yoshi/ws/ros/gsoc_ws/src/rapidyaml/c4conf/samples/find_package/build/Release --config Release --target run make: *** No rule to make target 'run'. Stop. ```