error:cv_bridge---opencv和ros连接起来的桥

本文详细介绍了如何解决ROS(cv_bridge)与新版本OpenCV之间的版本冲突问题,包括卸载旧版cv_bridge,下载并配置新版,以及更新CMakeLists.txt文件指定OpenCV版本。

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有多个warning出现。。。版本冲突

解决办法:

cv_bridge[opencv和ros连接起来的桥],默认依赖的opencv版本是2.4.8,如果安装了新的opencv版本,比如3.1.0,那么在编译cv_bridge时候会提示无法找到opencv 2.4.8.so的库。

1.必须要先把旧版本的cv_bridge卸载掉:

sudo apt-get remove ros-indigo-cv-bridge

2.然后下载新版本的cv_bridge:

git clone https://github.com/ros-perception/vision_opencv.git

3.修改cv_bridge中的cmakelists.txt

find_package(OpenCV 3.1 REQUIRED)  //将opencv的版本指定为3.1

4.将里面的cv_bridge包拿出来,放到工作空间中,重新编译:

catkin_make --pkg cv_bridge  //catkin_make --pkg[package包],单独编译工作空间catkin_ws中的包;catkin_make编译所有的

也可以通过cmake编译

cd ~/catkin_ws/src/cv_bridge
mkdir build
cd build
cmake ..
make
sudo make install

结束之后你就可以更改你的其他代码了,由于以前的cv_bridge不见了,所以要在其他代码的cmakelists.txt添加一句话,后面的路径是自己的路径,查找cv_bridge.config.cmake所在的路径即可

set(cv_bridge_DIR /usr/local/share/cv_bridge/cmake)  //在find_package前面

5.python调用cv_bridge相关的工作

在~/.bashrc中添加

export LD_LIBRARY_PATH=/usr/local/lib/
====================[ 构建 | show | Debug ]======================================= /snap/clion/326/bin/cmake/linux/x64/bin/cmake --build /home/sfx233/yinyou/src/answer/cmake-build-debug --target show -j 22 [1/2] Building CXX object CMakeFiles/show.dir/src/show.cpp.o FAILED: CMakeFiles/show.dir/src/show.cpp.o /usr/bin/c++ -DDEFAULT_RMW_IMPLEMENTATION=rmw_fastrtps_cpp -DRCUTILS_ENABLE_FAULT_INJECTION -isystem /opt/ros/humble/include/rclcpp -isystem /opt/ros/humble/include/sensor_msgs -isystem /opt/ros/humble/include/cv_bridge -isystem /usr/include/opencv4 -isystem /opt/ros/humble/include/ament_index_cpp -isystem /opt/ros/humble/include/libstatistics_collector -isystem /opt/ros/humble/include/builtin_interfaces -isystem /opt/ros/humble/include/rosidl_runtime_c -isystem /opt/ros/humble/include/rcutils -isystem /opt/ros/humble/include/rosidl_typesupport_interface -isystem /opt/ros/humble/include/fastcdr -isystem /opt/ros/humble/include/rosidl_runtime_cpp -isystem /opt/ros/humble/include/rosidl_typesupport_fastrtps_cpp -isystem /opt/ros/humble/include/rmw -isystem /opt/ros/humble/include/rosidl_typesupport_fastrtps_c -isystem /opt/ros/humble/include/rosidl_typesupport_introspection_c -isystem /opt/ros/humble/include/rosidl_typesupport_introspection_cpp -isystem /opt/ros/humble/include/rcl -isystem /opt/ros/humble/include/rcl_interfaces -isystem /opt/ros/humble/include/rcl_logging_interface -isystem /opt/ros/humble/include/rcl_yaml_param_parser -isystem /opt/ros/humble/include/libyaml_vendor -isystem /opt/ros/humble/include/tracetools -isystem /opt/ros/humble/include/rcpputils -isystem /opt/ros/humble/include/statistics_msgs -isystem /opt/ros/humble/include/rosgraph_msgs -isystem /opt/ros/humble/include/rosidl_typesupport_cpp -isystem /opt/ros/humble/include/rosidl_typesupport_c -isystem /opt/ros/humble/include/geometry_msgs -isystem /opt/ros/humble/include/std_msgs -g -fdiagnostics-color=always -MD -MT CMakeFiles/show.dir/src/show.cpp.o -MF CMakeFiles/show.dir/src/show.cpp.o.d -o CMakeFiles/show.dir/src/show.cpp.o -c /home/sfx233/yinyou/src/answer/src/show.cpp /home/sfx233/yinyou/src/answer/src/show.cpp: In constructor ‘picture_show::picture_show()’: /home/sfx233/yinyou/src/answer/src/show.cpp:14:109: error: no matching function for call to ‘picture_show::image_callback()’ 14 | std::bind(&picture_show::image_callback(), this, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~ /home/sfx233/yinyou/src/answer/src/show.cpp:19:13: note: candidate: ‘void picture_show::image_callback(sensor_msgs::msg::Image_<std::allocator<void> >::SharedPtr)’ 19 | void image_callback(const sensor_msgs::msg::Image::SharedPtr msg) { | ^~~~~~~~~~~~~~ /home/sfx233/yinyou/src/answer/src/show.cpp:19:13: note: candidate expects 1 argument, 0 provided /home/sfx233/yinyou/src/answer/src/show.cpp: In member function ‘void picture_show::image_callback(sensor_msgs::msg::Image_<std::allocator<void> >::SharedPtr)’: /home/sfx233/yinyou/src/answer/src/show.cpp:27:16: error: expected primary-expression before ‘catch’ 27 | }catch (const cv_bridge::Exception& e){ | ^~~~~ /home/sfx233/yinyou/src/answer/src/show.cpp:30:12: error: expected ‘catch’ before ‘;’ token 30 | }; | ^ /home/sfx233/yinyou/src/answer/src/show.cpp:30:12: error: expected ‘(’ before ‘;’ token /home/sfx233/yinyou/src/answer/src/show.cpp:30:12: error: expected type-specifier before ‘;’ token /home/sfx233/yinyou/src/answer/src/show.cpp:30:12: error: expected ‘)’ before ‘;’ token /home/sfx233/yinyou/src/answer/src/show.cpp:30:12: note: to match this ‘(’ /home/sfx233/yinyou/src/answer/src/show.cpp:30:12: error: expected ‘{’ before ‘;’ token ninja: build stopped: subcommand failed.
03-12
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