error in catkin_make

[prostraintechnologies]

hi,

I tried to catkin_make but it gave me these errors:

[ 86%] Built target hmi_node_generate_messages
In file included from /opt/ros/melodic/include/ros/serialization.h:37:0,
from /opt/ros/melodic/include/ros/publisher.h:34,
from /opt/ros/melodic/include/ros/node_handle.h:32,
from /opt/ros/melodic/include/ros/ros.h:45,
from /home/prostrain/catkin_ws/src/qr_detector/include/qr_detector/qr_detector_nodelet.h:3,
from /home/prostrain/catkin_ws/src/qr_detector/src/qr_detector_nodelet.cpp:1:
/opt/ros/melodic/include/ros/message_traits.h: In instantiation of ‘static const char* ros::message_traits::MD5Sum::value(const M&) [with M = std::__cxx11::basic_string]’:
/opt/ros/melodic/include/ros/message_traits.h:254:102: required from ‘const char* ros::message_traits::md5sum(const M&) [with M = std::__cxx11::basic_string]’
/opt/ros/melodic/include/ros/publisher.h:116:38: required from ‘void ros::Publisher::publish(const M&) const [with M = std::__cxx11::basic_string]’
/home/prostrain/catkin_ws/src/qr_detector/src/qr_detector_nodelet.cpp:64:40: required from here
/opt/ros/melodic/include/ros/message_traits.h:125:14: error: ‘const class std::__cxx11::basic_string’ has no member named ‘__getMD5Sum’
return m.__getMD5Sum().c_str();
~~^~~~~~~~~~~
/opt/ros/melodic/include/ros/message_traits.h: In instantiation of ‘static const char* ros::message_traits::DataType::value(const M&) [with M = std::__cxx11::basic_string]’:
/opt/ros/melodic/include/ros/message_traits.h:263:104: required from ‘const char* ros::message_traits::datatype(const M&) [with M = std::__cxx11::basic_string]’
/opt/ros/melodic/include/ros/publisher.h:118:11: required from ‘void ros::Publisher::publish(const M&) const [with M = std::__cxx11::basic_string]’
/home/prostrain/catkin_ws/src/qr_detector/src/qr_detector_nodelet.cpp:64:40: required from here
/opt/ros/melodic/include/ros/message_traits.h:142:14: error: ‘const class std::__cxx11::basic_string’ has no member named ‘__getDataType’
return m.__getDataType().c_str();
~~^~~~~~~~~~~~~
qr_detector/CMakeFiles/qr_detector_nodelet.dir/build.make:62: recipe for target 'qr_detector/CMakeFiles/qr_detector_nodelet.dir/src/qr_detector_nodelet.cpp.o' failed
make[2]: *** [qr_detector/CMakeFiles/qr_detector_nodelet.dir/src/qr_detector_nodelet.cpp.o] Error 1
CMakeFiles/Makefile2:1477: recipe for target 'qr_detector/CMakeFiles/qr_detector_nodelet.dir/all' failed
make[1]: *** [qr_detector/CMakeFiles/qr_detector_nodelet.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2
Invoking "make -j4 -l4" failed
[ 86%] Built target hmi_node_generate_messages
In file included from /opt/ros/melodic/include/ros/serialization.h:37:0,
from /opt/ros/melodic/include/ros/publisher.h:34,
from /opt/ros/melodic/include/ros/node_handle.h:32,
from /opt/ros/melodic/include/ros/ros.h:45,
from /home/prostrain/catkin_ws/src/qr_detector/include/qr_detector/qr_detector_nodelet.h:3,
from /home/prostrain/catkin_ws/src/qr_detector/src/qr_detector_nodelet.cpp:1:
/opt/ros/melodic/include/ros/message_traits.h: In instantiation of ‘static const char* ros::message_traits::MD5Sum::value(const M&) [with M = std::__cxx11::basic_string]’:
/opt/ros/melodic/include/ros/message_traits.h:254:102: required from ‘const char* ros::message_traits::md5sum(const M&) [with M = std::__cxx11::basic_string]’
/opt/ros/melodic/include/ros/publisher.h:116:38: required from ‘void ros::Publisher::publish(const M&) const [with M = std::__cxx11::basic_string]’
/home/prostrain/catkin_ws/src/qr_detector/src/qr_detector_nodelet.cpp:64:40: required from here
/opt/ros/melodic/include/ros/message_traits.h:125:14: error: ‘const class std::__cxx11::basic_string’ has no member named ‘__getMD5Sum’
return m.__getMD5Sum().c_str();
~~^~~~~~~~~~~
/opt/ros/melodic/include/ros/message_traits.h: In instantiation of ‘static const char* ros::message_traits::DataType::value(const M&) [with M = std::__cxx11::basic_string]’:
/opt/ros/melodic/include/ros/message_traits.h:263:104: required from ‘const char* ros::message_traits::datatype(const M&) [with M = std::__cxx11::basic_string]’
/opt/ros/melodic/include/ros/publisher.h:118:11: required from ‘void ros::Publisher::publish(const M&) const [with M = std::__cxx11::basic_string]’
/home/prostrain/catkin_ws/src/qr_detector/src/qr_detector_nodelet.cpp:64:40: required from here
/opt/ros/melodic/include/ros/message_traits.h:142:14: error: ‘const class std::__cxx11::basic_string’ has no member named ‘__getDataType’
return m.__getDataType().c_str();
~~^~~~~~~~~~~~~
qr_detector/CMakeFiles/qr_detector_nodelet.dir/build.make:62: recipe for target 'qr_detector/CMakeFiles/qr_detector_nodelet.dir/src/qr_detector_nodelet.cpp.o' failed
make[2]: *** [qr_detector/CMakeFiles/qr_detector_nodelet.dir/src/qr_detector_nodelet.cpp.o] Error 1
CMakeFiles/Makefile2:1477: recipe for target 'qr_detector/CMakeFiles/qr_detector_nodelet.dir/all' failed
make[1]: *** [qr_detector/CMakeFiles/qr_detector_nodelet.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2
Invoking "make -j4 -l4" failed

Do you have any ideas about it? I am a newbie on this ros application. Thank you in advance.

[ingjae]

I had same issue

try edit here
https://github.com/mdrwiega/qr_detector/blob/master/src/qr_detector_nodelet.cpp#L50

void QrDetectorNodelet::imageCallback(const sensor_msgs::ImageConstPtr &image)
{
  cv_bridge::CvImageConstPtr cv_image;
  std_msgs::String qr_msg;

  try {
    cv_image = cv_bridge::toCvShare(image, sensor_msgs::image_encodings::BGR8);
  }
  catch (cv_bridge::Exception& e) {
    ROS_ERROR("cv_bridge exception: %s", e.what());
    return;
  }
  
  auto tags = detector_.detect(cv_image->image, 10);
  for (auto& tag : tags)
  {
    qr_msg.data = tag.message;
    tags_publisher_.publish(qr_msg);
  }
}

it works for me