Fails to build with `main.cpp:83:27: error: no matching function for call to 'createProxy'` and subsequent errors (sbus-cpp 2.1.0, gcc 14.2.1).

[dreirund]

Ahoj,

I am trying to build release version 0.2.1 of cppbtl on Artix GNU/Linux (rolling release), using this recipe.

Build fails for me with main.cpp:83:27: error: no matching function for call to 'createProxy' and subsequent errors (full build output below).

My GCC version is 14.2.1, sdbus-cpp version is 2.1.0.

Build output of

cmake -DCMAKE_INSTALL_PREFIX=/usr
make -j1

-- The C compiler identification is Clang 18.1.8
-- The CXX compiler identification is Clang 18.1.8
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/clang - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/clang++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (0.5s)
-- Generating done (0.0s)
-- Build files have been written to: /var/cache/makepkg/build/cppbtbl/src/build
[ 25%] Building CXX object CMakeFiles/cppbtbl.dir/src/config.cpp.o
[ 50%] Building CXX object CMakeFiles/cppbtbl.dir/src/main.cpp.o
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:83:27: error: no matching function for call to 'createProxy'
   83 |         auto device_obj = sdbus::createProxy(UPOWER_IFACE, device);
      |                           ^~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:936:50: note: candidate function not viable: no known conversion from 'const char[23]' to 'ServiceName' (aka 'sdbus::BusName') for 1st argument
  936 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( ServiceName destination
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:861:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  861 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( sdbus::IConnection& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  862 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  863 |                                                             , ObjectPath objectPath );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:887:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  887 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  888 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  889 |                                                             , ObjectPath objectPath );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:957:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  957 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( ServiceName destination
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~
  958 |                                                             , ObjectPath objectPath
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
  959 |                                                             , dont_run_event_loop_thread_t );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:914:50: note: candidate function not viable: requires 4 arguments, but 2 were provided
  914 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  915 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  916 |                                                             , ObjectPath objectPath
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
  917 |                                                             , dont_run_event_loop_thread_t );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:121:26: error: no matching function for call to 'createProxy'
  121 |     auto device_object = sdbus::createProxy(UPOWER_IFACE, path);
      |                          ^~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:936:50: note: candidate function not viable: no known conversion from 'const char[23]' to 'ServiceName' (aka 'sdbus::BusName') for 1st argument
  936 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( ServiceName destination
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:861:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  861 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( sdbus::IConnection& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  862 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  863 |                                                             , ObjectPath objectPath );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:887:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  887 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  888 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  889 |                                                             , ObjectPath objectPath );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:957:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  957 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( ServiceName destination
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~
  958 |                                                             , ObjectPath objectPath
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
  959 |                                                             , dont_run_event_loop_thread_t );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:914:50: note: candidate function not viable: requires 4 arguments, but 2 were provided
  914 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  915 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  916 |                                                             , ObjectPath objectPath
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
  917 |                                                             , dont_run_event_loop_thread_t );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:168:44: error: no matching function for call to 'createProxy'
  168 |     std::unique_ptr<sdbus::IProxy> proxy = sdbus::createProxy(UPOWER_IFACE, UPOWER_PATH);
      |                                            ^~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:936:50: note: candidate function not viable: no known conversion from 'const char[23]' to 'ServiceName' (aka 'sdbus::BusName') for 1st argument
  936 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( ServiceName destination
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:861:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  861 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( sdbus::IConnection& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  862 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  863 |                                                             , ObjectPath objectPath );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:887:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  887 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  888 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  889 |                                                             , ObjectPath objectPath );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:957:50: note: candidate function not viable: requires 3 arguments, but 2 were provided
  957 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( ServiceName destination
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~
  958 |                                                             , ObjectPath objectPath
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
  959 |                                                             , dont_run_event_loop_thread_t );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:914:50: note: candidate function not viable: requires 4 arguments, but 2 were provided
  914 |     [[nodiscard]] std::unique_ptr<sdbus::IProxy> createProxy( std::unique_ptr<sdbus::IConnection>&& connection
      |                                                  ^            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  915 |                                                             , ServiceName destination
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~
  916 |                                                             , ObjectPath objectPath
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~
  917 |                                                             , dont_run_event_loop_thread_t );
      |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:169:39: error: 'createMethodCall' is a protected member of 'sdbus::IProxy'
  169 |     sdbus::MethodCall method = proxy->createMethodCall(UPOWER_IFACE, "EnumerateDevices");
      |                                ~~~~~~~^~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:655:42: note: declared protected here
  655 |         [[nodiscard]] virtual MethodCall createMethodCall(const char* interfaceName, const char* methodName) const = 0;
      |                                          ^
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:186:12: error: no matching member function for call to 'registerSignalHandler'
  186 |     proxy->registerSignalHandler(UPOWER_IFACE, "DeviceAdded", &_device_added_signal);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:656:22: note: candidate function not viable: no known conversion from 'void (*)(sdbus::Signal &)' to 'signal_handler' (aka 'function<void (Signal)>') for 3rd argument
  656 |         virtual void registerSignalHandler( const char* interfaceName
      |                      ^
  657 |                                           , const char* signalName
  658 |                                           , signal_handler signalHandler ) = 0;
      |                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:625:22: note: candidate function not viable: no known conversion from 'const char[23]' to 'const InterfaceName' for 1st argument
  625 |         virtual void registerSignalHandler( const InterfaceName& interfaceName
      |                      ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:645:36: note: candidate function not viable: requires 4 arguments, but 3 were provided
  645 |         [[nodiscard]] virtual Slot registerSignalHandler( const InterfaceName& interfaceName
      |                                    ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  646 |                                                         , const SignalName& signalName
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  647 |                                                         , signal_handler signalHandler
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  648 |                                                         , return_slot_t ) = 0;
      |                                                         ~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:659:36: note: candidate function not viable: requires 4 arguments, but 3 were provided
  659 |         [[nodiscard]] virtual Slot registerSignalHandler( const char* interfaceName
      |                                    ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~
  660 |                                                         , const char* signalName
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~
  661 |                                                         , signal_handler signalHandler
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  662 |                                                         , return_slot_t ) = 0;
      |                                                         ~~~~~~~~~~~~~~~
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:187:12: error: no matching member function for call to 'registerSignalHandler'
  187 |     proxy->registerSignalHandler(UPOWER_IFACE, "DeviceRemoved", &_device_removed_signal);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:656:22: note: candidate function not viable: no known conversion from 'void (*)(sdbus::Signal &)' to 'signal_handler' (aka 'function<void (Signal)>') for 3rd argument
  656 |         virtual void registerSignalHandler( const char* interfaceName
      |                      ^
  657 |                                           , const char* signalName
  658 |                                           , signal_handler signalHandler ) = 0;
      |                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:625:22: note: candidate function not viable: no known conversion from 'const char[23]' to 'const InterfaceName' for 1st argument
  625 |         virtual void registerSignalHandler( const InterfaceName& interfaceName
      |                      ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:645:36: note: candidate function not viable: requires 4 arguments, but 3 were provided
  645 |         [[nodiscard]] virtual Slot registerSignalHandler( const InterfaceName& interfaceName
      |                                    ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  646 |                                                         , const SignalName& signalName
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  647 |                                                         , signal_handler signalHandler
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  648 |                                                         , return_slot_t ) = 0;
      |                                                         ~~~~~~~~~~~~~~~
/usr/include/sdbus-c++/IProxy.h:659:36: note: candidate function not viable: requires 4 arguments, but 3 were provided
  659 |         [[nodiscard]] virtual Slot registerSignalHandler( const char* interfaceName
      |                                    ^                      ~~~~~~~~~~~~~~~~~~~~~~~~~
  660 |                                                         , const char* signalName
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~
  661 |                                                         , signal_handler signalHandler
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  662 |                                                         , return_slot_t ) = 0;
      |                                                         ~~~~~~~~~~~~~~~
/var/cache/makepkg/build/cppbtbl/src/cppbtbl-0.2.1/src/main.cpp:188:12: error: no member named 'finishRegistration' in 'sdbus::IProxy'
  188 |     proxy->finishRegistration();
      |     ~~~~~~~^
7 errors generated.
make[2]: *** [CMakeFiles/cppbtbl.dir/build.make:93: CMakeFiles/cppbtbl.dir/src/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:87: CMakeFiles/cppbtbl.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

Regards!

[Pato05]

Hi! It seems like sdbus-cpp has been updated, which requires an update of the source code in order for it to work. Sadly I cannot currently work on it because of exams, but it'll be on my todo list as soon as I'm done. Either way, if you feel like it, you can try to fix the issue and submit a Pull Request!

As an alternative, you can just downgrade your sdbus-cpp to version 1.5.0 (fixed: https://aur.archlinux.org/cgit/aur.git/commit/?h=cppbtbl&id=6b74b21efc3e7505ab325fc0d95ef3bb16583eb3).

Also, sorry for the late response..

[Pato05]

For reference, this is what needs to be changed:

• Strong types were introduced for safer, less error-prone and more expressive API. What previously was auto proxy = createProxy("org.sdbuscpp.concatenator", "/org/sdbuscpp/concatenator"); is now written like auto proxy = createProxy(ServiceName{"org.sdbuscpp.concatenator"}, ObjectPath{"/org/sdbuscpp/concatenator"});. These types are:
  • ObjectPath type for the object path (the type has been around already but now is also used consistently in sdbus-c++ API for object path strings)
  • InterfaceName type for D-Bus interface names
  • BusName (and its aliases ServiceName and ConnectionName) type for bus/service/connection names
  • MemberName (and its aliases MethodName, SignalName and PropertyName) type for D-Bus method, signal and property names
  • Signature type for the D-Bus signature (the type has been around already but now is also used consistently in sdbus-c++ API for signature strings)
  • Error::Name type for D-Bus error names

from: https://github.com/Kistler-Group/sdbus-cpp/blob/master/docs/using-sdbus-c++.md#migrating-to-sdbus-c-v2