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undefined reference to `cv::destroyWindow(std::__cxx11::basic_string<char, std::char_traits<char>, s
出错信息: /home/project/src/tasks.cpp:361: undefined reference to `cv::imread(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)' 1 原因: 注意上面的那个__cxx11。旧版本编译器编译出来的代码中,不会有这个符号。 用于编译该代码的gcc编译器的版本是5..原创 2021-09-19 22:35:29 · 840 阅读 · 0 评论 -
Gazebo [Err] [REST.cc:205] Error in REST request
来源:YouTube视频 # 使用文本编辑器编辑以下文件 $ sudo gedit ~/.ignition/fuel/config.yaml # url: https://api.ignitionfuel.org # 注释掉此行 url: https://api.ignitionrobotics.org # 新增此行原创 2021-03-12 20:16:30 · 236 阅读 · 0 评论 -
Joint state with name: “base_l_wheel_joint” was received but not found in URDF
ROS-melodic下运行出现[ WARN] :Joint state with name: “base_l_wheel_joint” was received but not found in URDF 原因是在robot描述文件URDF中关节定义出错,找到launch文件使用的URDF描述文件,并将left_wheel_joint修改成base_l_wheel_joint,将right_wheel_joint修改为base_r_wheel_joint。 ...原创 2021-03-10 15:10:20 · 1235 阅读 · 1 评论 -
nano学习记录
连接WiFi nano修改分辨率原创 2020-12-10 15:25:04 · 1064 阅读 · 0 评论 -
ROS学习笔记riki
ROS学习笔记 1.搜索所要安装的包 To find available packages, use: 报错信息: apt-cache search ros-kinetic c:出现 Could not find a package configuration file provided by "ros-kinetic-octomap-msgs " with any of the following names: octomap Config.cmake octomap -config.cmake 终原创 2021-03-06 11:34:18 · 363 阅读 · 0 评论