CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY In file included from /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/description.h:20, from /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/common/description.cc:8: /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:27: error: ‘string_view’ is not a member of ‘std’ 109 | std::unordered_map> fixed_; | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:27: note: ‘std::string_view’ is only available from C++17 onwards /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:27: error: ‘string_view’ is not a member of ‘std’ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:27: note: ‘std::string_view’ is only available from C++17 onwards /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:71: error: template argument 1 is invalid 109 | std::unordered_map> fixed_; | ^~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:71: error: template argument 3 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:71: error: template argument 4 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:109:71: error: template argument 5 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:27: error: ‘string_view’ is not a member of ‘std’ 110 | std::unordered_map> param_; | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:27: note: ‘std::string_view’ is only available from C++17 onwards /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:27: error: ‘string_view’ is not a member of ‘std’ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:27: note: ‘std::string_view’ is only available from C++17 onwards /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:71: error: template argument 1 is invalid 110 | std::unordered_map> param_; | ^~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:71: error: template argument 3 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:71: error: template argument 4 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:110:71: error: template argument 5 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:27: error: ‘string_view’ is not a member of ‘std’ 111 | std::unordered_map> | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:27: note: ‘std::string_view’ is only available from C++17 onwards /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:27: error: ‘string_view’ is not a member of ‘std’ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:27: note: ‘std::string_view’ is only available from C++17 onwards /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:71: error: template argument 1 is invalid 111 | std::unordered_map> | ^~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:71: error: template argument 3 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:71: error: template argument 4 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:111:71: error: template argument 5 is invalid /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:123:48: error: ‘string_view’ in namespace ‘std’ does not name a type 123 | static SegmentType getSegmentType(const std::string_view &fragment); | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:123:43: note: ‘std::string_view’ is only available from C++17 onwards 123 | static SegmentType getSegmentType(const std::string_view &fragment); | ^~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:141:24: error: ‘string_view’ in namespace ‘std’ does not name a type 141 | findRoute(const std::string_view &path, std::vector ¶ms, | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:141:19: note: ‘std::string_view’ is only available from C++17 onwards 141 | findRoute(const std::string_view &path, std::vector ¶ms, | ^~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:169:28: error: ‘string_view’ in namespace ‘std’ does not name a type 169 | void addRoute(const std::string_view &path, const Route::Handler &handler, | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:169:23: note: ‘std::string_view’ is only available from C++17 onwards 169 | void addRoute(const std::string_view &path, const Route::Handler &handler, | ^~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:182:31: error: ‘string_view’ in namespace ‘std’ does not name a type 182 | bool removeRoute(const std::string_view &path); | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:182:26: note: ‘std::string_view’ is only available from C++17 onwards 182 | bool removeRoute(const std::string_view &path); | ^~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:198:24: error: ‘string_view’ in namespace ‘std’ does not name a type 198 | findRoute(const std::string_view &path) const; | ^~~~~~~~~~~ /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/source_subfolder/src/../include/pistache/router.h:198:19: note: ‘std::string_view’ is only available from C++17 onwards 198 | findRoute(const std::string_view &path) const; | ^~~ make[2]: *** [source_subfolder/src/CMakeFiles/pistache.dir/build.make:89: source_subfolder/src/CMakeFiles/pistache.dir/common/description.cc.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [CMakeFiles/Makefile2:142: source_subfolder/src/CMakeFiles/pistache.dir/all] Error 2 make: *** [Makefile:152: all] Error 2 pistache/cci.20201127: WARN: Build folder is dirty, removing it: /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b pistache/cci.20201127: ERROR: Package 'd853ca3648207df8b38b3d5d3c3d55c2d058448b' build failed pistache/cci.20201127: WARN: Build folder /home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b ERROR: pistache/cci.20201127: Error in build() method, line 86 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-3719/.conan/data/pistache/cci.20201127/_/_/build/d853ca3648207df8b38b3d5d3c3d55c2d058448b/build_subfolder' '--' '-j3'