Can't compile

[facontidavide]

I followed the instructions provided but I get the following error:

/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp: In function ‘int main(int, char**)’:
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: error: ‘AsyncParametersClient’ is not a member of ‘rclcpp::parameter’
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: note: suggested alternative:
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:23:0,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:15:
/home/shadylady/ros2_ws/install/include/rclcpp/parameter_client.hpp:43:7: note: ‘rclcpp::parameter_client::AsyncParametersClient’
class AsyncParametersClient
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: error: ‘AsyncParametersClient’ is not a member of ‘rclcpp::parameter’
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: note: suggested alternative:
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:23:0,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:15:
/home/shadylady/ros2_ws/install/include/rclcpp/parameter_client.hpp:43:7: note: ‘rclcpp::parameter_client::AsyncParametersClient’
class AsyncParametersClient
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:91: error: no matching function for call to ‘make_shared(std::shared_ptrrclcpp::node::Node&)’
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:91: note: candidate is:
In file included from /usr/include/c++/4.8/memory:82:0,
from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:19,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:15:
/usr/include/c++/4.8/bits/shared_ptr.h:610:5: note: template<class _Tp, class ... _Args> std::shared_ptr<_Tp1> std::make_shared(_Args&& ...)
make_shared(_Args&&... __args)
^
/usr/include/c++/4.8/bits/shared_ptr.h:610:5: note: template argument deduction/substitution failed:
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:91: error: template argument 1 is invalid
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:47:17: error: unable to deduce ‘auto&&’ from ‘values_f2’
for (auto p : values_f2) {
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:53:72: error: expected primary-expression before ‘)’ token
(p.get_valuerclcpp::parameter::ParameterType::PARAMETER_BOOL() ? "true" : "false");
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:57:74: error: expected primary-expression before ‘)’ token
p.get_valuerclcpp::parameter::ParameterType::PARAMETER_INTEGER();
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:61:73: error: expected primary-expression before ‘)’ token
p.get_valuerclcpp::parameter::ParameterType::PARAMETER_DOUBLE();
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:65:73: error: expected primary-expression before ‘)’ token
p.get_valuerclcpp::parameter::ParameterType::PARAMETER_STRING();
^
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/node.hpp:276:0,
from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:21,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/prototype_intraprocesses.cpp:19:
/home/shadylady/ros2_ws/install/include/rclcpp/node_impl.hpp: In lambda function:
/home/shadylady/ros2_ws/install/include/rclcpp/node_impl.hpp:318:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
return std::count(substr.begin(), substr.end(), '.') < depth;
^
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/node.hpp:276:0,
from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:21,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/prototype_intraprocesses.cpp:19:
/home/shadylady/ros2_ws/install/include/rclcpp/node_impl.hpp: In lambda function:
/home/shadylady/ros2_ws/install/include/rclcpp/node_impl.hpp:318:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
return std::count(substr.begin(), substr.end(), '.') < depth;
^
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/node.hpp:276:0,
from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:21,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/imu/rosimu/publisher.cpp:22:
/home/shadylady/ros2_ws/install/include/rclcpp/node_impl.hpp: In lambda function:
/home/shadylady/ros2_ws/install/include/rclcpp/node_impl.hpp:318:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
return std::count(substr.begin(), substr.end(), '.') < depth;
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp: In function ‘int main(int, char**)’:
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: error: ‘AsyncParametersClient’ is not a member of ‘rclcpp::parameter’
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: note: suggested alternative:
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:23:0,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:15:
/home/shadylady/ros2_ws/install/include/rclcpp/parameter_client.hpp:43:7: note: ‘rclcpp::parameter_client::AsyncParametersClient’
class AsyncParametersClient
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: error: ‘AsyncParametersClient’ is not a member of ‘rclcpp::parameter’
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:45: note: suggested alternative:
In file included from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:23:0,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:15:
/home/shadylady/ros2_ws/install/include/rclcpp/parameter_client.hpp:43:7: note: ‘rclcpp::parameter_client::AsyncParametersClient’
class AsyncParametersClient
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:91: error: no matching function for call to ‘make_shared(std::shared_ptrrclcpp::node::Node&)’
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:91: note: candidate is:
In file included from /usr/include/c++/4.8/memory:82:0,
from /home/shadylady/ros2_ws/install/include/rclcpp/rclcpp.hpp:19,
from /home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:15:
/usr/include/c++/4.8/bits/shared_ptr.h:610:5: note: template<class _Tp, class ... _Args> std::shared_ptr<_Tp1> std::make_shared(_Args&& ...)
make_shared(_Args&&... __args)
^
/usr/include/c++/4.8/bits/shared_ptr.h:610:5: note: template argument deduction/substitution failed:
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:23:91: error: template argument 1 is invalid
auto parameters_client = std::make_sharedrclcpp::parameter::AsyncParametersClient(node);
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:47:17: error: unable to deduce ‘auto&&’ from ‘values_f2’
for (auto p : values_f2) {
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:53:72: error: expected primary-expression before ‘)’ token
(p.get_valuerclcpp::parameter::ParameterType::PARAMETER_BOOL() ? "true" : "false");
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:57:74: error: expected primary-expression before ‘)’ token
p.get_valuerclcpp::parameter::ParameterType::PARAMETER_INTEGER();
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:61:73: error: expected primary-expression before ‘)’ token
p.get_valuerclcpp::parameter::ParameterType::PARAMETER_DOUBLE();
^
/home/shadylady/ros2_ws/src/ros2/examples/userland/src/async_parameters.cpp:65:73: error: expected primary-expression before ‘)’ token
p.get_valuerclcpp::parameter::ParameterType::PARAMETER_STRING();
^
make[2]: *** [CMakeFiles/async_parameters__rmw_opensplice_cpp.dir/src/async_parameters.cpp.o] Error 1
make[1]: *** [CMakeFiles/async_parameters__rmw_opensplice_cpp.dir/all] Error 2

[dirk-thomas]

This seems to be related to a recently merged PR (ros2/rclcpp#30). For a temporary workaround you can revert the rclcpp repository to the hash ros2/rclcpp@198b40a until it will be fixed on the master.

[facontidavide]

I am not in a hurry, I will wait for you to fix it with the latest version. ;)

[facontidavide]

just pulled the latest changes and it compiles just fine.