******************************************************************************** conan test conan-center-index/recipes/packio/all/test_package/conanfile.py packio/2.4.0@#e93b4b17c833c13a336e84548761f57a -pr /home/conan/w/prod/BuildSingleReference/149583/813f6fb2-09dc-4716-a771-bce57e530c21/profile_linux_7_libstdcpp11_gcc_release_64..txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True ******************************************************************************** Configuration: [settings] arch=x86_64 build_type=Release compiler=gcc compiler.libcxx=libstdc++11 compiler.version=7 os=Linux [options] [build_requires] [env] [conf] tools.system.package_manager:mode=install tools.system.package_manager:sudo=True packio/2.4.0 (test package): Installing package Requirements boost/1.75.0 from 'conan-center' - Cache bzip2/1.0.8 from 'conan-center' - Cache libbacktrace/cci.20210118 from 'conan-center' - Cache msgpack/3.2.1 from 'conan-center' - Cache nlohmann_json/3.9.1 from 'conan-center' - Cache packio/2.4.0 from local cache - Cache zlib/1.2.13 from 'conan-center' - Cache Packages boost/1.75.0:cfef62e446e1bb07894de4523f2649afdfa94524 - Cache bzip2/1.0.8:b27e2b40bcb70be2e7d6f0e0c6e43e35c530f8d3 - Cache libbacktrace/cci.20210118:d50a0d523d98c15bb147b18fa7d203887c38be8b - Cache msgpack/3.2.1:e65603ccb3bad57323a5d05bcd8e3ad31d393542 - Cache nlohmann_json/3.9.1:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache packio/2.4.0:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache zlib/1.2.13:d50a0d523d98c15bb147b18fa7d203887c38be8b - Cache Installing (downloading, building) binaries... bzip2/1.0.8: Already installed! libbacktrace/cci.20210118: Already installed! msgpack/3.2.1: Already installed! nlohmann_json/3.9.1: Already installed! zlib/1.2.13: Already installed! boost/1.75.0: Already installed! packio/2.4.0: Already installed! packio/2.4.0 (test package): Generator cmake created conanbuildinfo.cmake packio/2.4.0 (test package): Generator txt created conanbuildinfo.txt packio/2.4.0 (test package): Aggregating env generators packio/2.4.0 (test package): Generated conaninfo.txt packio/2.4.0 (test package): Generated graphinfo Using lockfile: '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/build/ac8e5b135bec2d2511377cc6fdda763812fc2867/conan.lock' Using cached profile from lockfile [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK packio/2.4.0 (test package): Calling build() ----Running------ > cd '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/build/ac8e5b135bec2d2511377cc6fdda763812fc2867' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="gcc" -DCONAN_COMPILER_VERSION="7" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++11" -DCMAKE_INSTALL_PREFIX="/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/build/ac8e5b135bec2d2511377cc6fdda763812fc2867/package" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev -DPACKIO_VERSION="2.4.0" '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package' ----------------- -- The CXX compiler identification is GNU 7.2.0 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/g++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Conan: called by CMake conan helper -- Conan: Adjusting output directories -- Conan: Using cmake global configuration -- Conan: Adjusting default RPATHs Conan policies -- Conan: Adjusting language standard -- Conan: Compiler GCC>=5, checking major version 7 -- Conan: Checking correct version: 7 -- Conan: C++ stdlib: libstdc++11 -- Configuring done -- Generating done -- Build files have been written to: /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/build/ac8e5b135bec2d2511377cc6fdda763812fc2867 ----Running------ > cmake --build '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/build/ac8e5b135bec2d2511377cc6fdda763812fc2867' '--' '-j3' ----------------- Scanning dependencies of target main [ 50%] Building CXX object CMakeFiles/main.dir/latest.cpp.o CMakeFiles/main.dir/build.make:81: recipe for target 'CMakeFiles/main.dir/latest.cpp.o' failed CMakeFiles/Makefile2:94: recipe for target 'CMakeFiles/main.dir/all' failed Makefile:102: recipe for target 'all' failed 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 In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/msgpack_rpc.h:13:0, from /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/packio.h:20, from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/latest.cpp:1: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h: In lambda function: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:335:22: error: parameter packs not expanded with ‘...’: if (Idxs < array.size) { ~~~~~^~~~~~~~~~~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:335:22: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:337:78: error: parameter packs not expanded with ‘...’: return array.ptr[Idxs].as>(); ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:337:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:342:60: error: parameter packs not expanded with ‘...’: + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:342:60: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:345:78: error: parameter packs not expanded with ‘...’: if (const auto& value = specs.template get().default_value()) { ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:345:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:349:77: error: parameter packs not expanded with ‘...’: "no value for argument " + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:349:77: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h: In static member function ‘static constexpr T packio::msgpack_rpc::rpc::convert_positional_args(const msgpack::v1::object_array&, const packio::args_specs&, std::index_sequence<_Idx ...>)’: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/msgpack_rpc/rpc.h:350:12: error: expansion pattern ‘()’ contains no argument packs }()...}; ^~~ In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/nl_json_rpc.h:14:0, from /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/packio.h:24, from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/latest.cpp:1: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h: In lambda function: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:364:22: error: parameter packs not expanded with ‘...’: if (Idxs < array.size()) { ~~~~~^~~~~~~~~~~~~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:364:22: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:366:78: error: parameter packs not expanded with ‘...’: return array.at(Idxs).get>(); ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:366:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:366:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:371:60: error: parameter packs not expanded with ‘...’: + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:371:60: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:374:78: error: parameter packs not expanded with ‘...’: if (const auto& value = specs.template get().default_value()) { ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:374:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:378:77: error: parameter packs not expanded with ‘...’: "no value for argument " + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:378:77: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h: In static member function ‘static constexpr T packio::nl_json_rpc::rpc::convert_positional_args(const json&, const packio::args_specs&, std::index_sequence<_Idx ...>)’: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:379:12: error: expansion pattern ‘()’ contains no argument packs }()...}; ^~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h: In lambda function: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:410:66: error: parameter packs not expanded with ‘...’: auto it = args.find(specs.template get().name()); ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:410:66: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:413:73: error: expected primary-expression before ‘>’ token return it->template get>(); ^~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:413:76: error: expected primary-expression before ‘)’ token return it->template get>(); ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:418:60: error: parameter packs not expanded with ‘...’: + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:418:60: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:421:78: error: parameter packs not expanded with ‘...’: if (const auto& value = specs.template get().default_value()) { ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:421:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:425:77: error: parameter packs not expanded with ‘...’: "no value for argument " + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:425:77: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h: In static member function ‘static T packio::nl_json_rpc::rpc::convert_named_args(const json&, const packio::args_specs&, std::index_sequence<_Idx ...>)’: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/nl_json_rpc/rpc.h:426:12: error: expansion pattern ‘()’ contains no argument packs }()...}; ^~~ In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/json_rpc.h:14:0, from /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/packio.h:28, from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/latest.cpp:1: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h: In lambda function: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:374:22: error: parameter packs not expanded with ‘...’: if (Idxs < array.size()) { ~~~~~^~~~~~~~~~~~~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:374:22: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:376:80: error: parameter packs not expanded with ‘...’: return boost::json::value_to>( ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ array.at(Idxs)); ~~~~~~~~~~~~~~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:376:80: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:376:80: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:382:60: error: parameter packs not expanded with ‘...’: + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:382:60: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:385:78: error: parameter packs not expanded with ‘...’: if (const auto& value = specs.template get().default_value()) { ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:385:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:389:77: error: parameter packs not expanded with ‘...’: "no value for argument " + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:389:77: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h: In static member function ‘static constexpr T packio::json_rpc::rpc::convert_positional_args(const boost::json::array&, const packio::args_specs&, std::index_sequence<_Idx ...>)’: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:390:12: error: expansion pattern ‘()’ contains no argument packs }()...}; ^~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h: In lambda function: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:424:66: error: parameter packs not expanded with ‘...’: auto it = args.find(specs.template get().name()); ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:424:66: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:427:28: error: parameter packs not expanded with ‘...’: return boost::json::value_to>( ^~~~~ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:427:28: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:433:60: error: parameter packs not expanded with ‘...’: + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:433:60: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:436:78: error: parameter packs not expanded with ‘...’: if (const auto& value = specs.template get().default_value()) { ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:436:78: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:440:77: error: parameter packs not expanded with ‘...’: "no value for argument " + specs.template get().name()}; ^ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:440:77: note: ‘Idxs’ /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h: In static member function ‘static constexpr T packio::json_rpc::rpc::convert_named_args(const boost::json::object&, const packio::args_specs&, std::index_sequence<_Idx ...>)’: /home/conan/w/prod/BuildSingleReference/.conan/data/packio/2.4.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/packio/json_rpc/rpc.h:441:12: error: expansion pattern ‘()’ contains no argument packs }()...}; ^~~ make[2]: *** [CMakeFiles/main.dir/latest.cpp.o] Error 1 make[1]: *** [CMakeFiles/main.dir/all] Error 2 make: *** [all] Error 2 msgpack/3.2.1: WARN: Recipe 'msgpack/3.2.1' is deprecated in favor of 'msgpack-c or msgpack-cxx'. Please, consider changing your requirements. ERROR: packio/2.4.0 (test package): Error in build() method, line 14 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/packio/all/test_package/build/ac8e5b135bec2d2511377cc6fdda763812fc2867' '--' '-j3'