Can't build agent because of fmt

まず、build_agent.sh を使って Jazzy のビルドを再現し、fmt/spdlog エラーがインスタンス化される InterfaceLinux.hpp の 63 行目付近を調べます。ビルドが選択している fmt と spdlog のインストールを追跡し、その後、micro-ROS Agent がビルドされ、報告されている linorobot2 のセットアップとの互換性を維持していることを確認します。

• Hardware description: Personnal computer running Ubuntu 24.04
• Installation type: Micro-ros-setup, colcon-build, snap
• Version or commit hash: jazzy
• Current spdlog version: 1.15.0

Context:
I'm building a ros2 package based on linorobot2 which requires micro ros agent.

Behavior

Following the installation tutorial, I execute the ros2 run build_agent.sh command and get this error:

In file included from /home/darkadius/anaconda3/include/fmt/format.h:41,
                 from /home/darkadius/anaconda3/include/fmt/core.h:5,
                 from /home/darkadius/anaconda3/include/spdlog/fmt/fmt.h:28,
                 from /home/darkadius/anaconda3/include/spdlog/common.h:50,
                 from /home/darkadius/anaconda3/include/spdlog/spdlog.h:12,
                 from /home/darkadius/ros2_ws/build/micro_ros_agent/agent/src/xrceagent/include/uxr/agent/logger/Logger.hpp:23,
                 from /home/darkadius/ros2_ws/build/micro_ros_agent/agent/src/xrceagent/include/uxr/agent/transport/SessionManager.hpp:18,
                 from /home/darkadius/ros2_ws/build/micro_ros_agent/agent/src/xrceagent/include/uxr/agent/transport/Server.hpp:20,
                 from /home/darkadius/ros2_ws/build/micro_ros_agent/agent/src/xrceagent/include/uxr/agent/transport/tcp/TCPv6AgentLinux.hpp:19,
                 from /home/darkadius/ros2_ws/build/micro_ros_agent/agent/src/xrceagent/src/cpp/transport/tcp/TCPv6AgentLinux.cpp:15:

/home/darkadius/anaconda3/include/fmt/base.h: In instantiation of ‘fmt::v11::detail::value<Context>::value(const T&, fmt::v11::detail::custom_tag) [with T = dds::xrce::TransportAddress; typename std::enable_if<(! has_formatter<T, typename Context::char_type>()), int>::type <anonymous> = 0; Context = fmt::v11::context]’:
/home/darkadius/anaconda3/include/fmt/base.h:2208:65:   required from ‘fmt::v11::detail::value<Context>::value(T&) [with T = dds::xrce::TransportAddress; typename std::enable_if<(std::integral_constant<bool, (((((((std::is_class<T>::value || std::is_enum<T>::value) || std::is_union<T>::value) || std::is_array<_Up>::value) && (! fmt::v11::detail::has_to_string_view<T, void>::value)) && (! fmt::v11::detail::is_named_arg<T>::value)) && (! fmt::v11::detail::use_format_as<T>::value)) && (! fmt::v11::detail::use_format_as_member<typename std::remove_const<T>::type, std::integral_constant<bool, true> >::value))>::value || (!1)), int>::type <anonymous> = 0; Context = fmt::v11::context]’
/home/darkadius/anaconda3/include/fmt/base.h:2781:20:   required from ‘constexpr fmt::v11::detail::format_arg_store<Context, NUM_ARGS, NUM_NAMED_ARGS, DESC> fmt::v11::make_format_args(T& ...) [with Context = context; T = {const char [24], dds::xrce::TransportAddress}; int NUM_ARGS = 2; int NUM_NAMED_ARGS = 0; long long unsigned int DESC = 252]’
/home/darkadius/anaconda3/include/spdlog/logger.h:328:75:   required from ‘void spdlog::logger::log_(spdlog::source_loc, spdlog::level::level_enum, spdlog::string_view_t, Args&& ...) [with Args = {const char (&)[24], dds::xrce::TransportAddress&}; spdlog::string_view_t = fmt::v11::basic_string_view<char>]’
/home/darkadius/anaconda3/include/spdlog/logger.h:80:13:   required from ‘void spdlog::logger::log(spdlog::source_loc, spdlog::level::level_enum, fmt::v11::format_string<T ...>, Args&& ...) [with Args = {const char (&)[24], dds::xrce::TransportAddress&}; fmt::v11::format_string<T ...> = fmt::v11::fstring<const char (&)[24], dds::xrce::TransportAddress&>]’
/home/darkadius/ros2_ws/build/micro_ros_agent/agent/src/xrceagent/include/uxr/agent/transport/util/InterfaceLinux.hpp:63:17:   required from here

/home/darkadius/anaconda3/include/fmt/base.h:2235:45: error: ‘fmt::v11::detail::type_is_unformattable_for<dds::xrce::TransportAddress, char> _’ has incomplete type
 2235 |     type_is_unformattable_for<T, char_type> _;

Solutions tried:

-Downgrading spdlog: Jazzy's rclpy requires spdlog 1.15.0
-Building libfmt from source from here : Gives the above error as the new libfmt wasn't detected
-Using the DUAGENT flag (both on/off) from here : Still gives me the above error
-Using the snap version from here : The package does build successfully, however, the only micro-ros-agent package on snap was the foxy version, which causes fatal compatibility issues upon launching the linorobot2 package

It feels like I've tried everything short of a complete ros2/ubuntu reinstall (which I'd like to avoid, obviously). Does anyone has some advice?