at /opt/ros/noetic/share/catkin/cmake/catkinConfig.cmake:83 (find_package): Could not find a package configuration file provided by "OpenCV_REQUIRED" with any of the following names: OpenCV_REQUIREDConfig.cmake opencv_required-config.cmake Add the installation prefix of "OpenCV_REQUIRED" to CMAKE_PREFIX_PATH or set "OpenCV_REQUIRED_DIR" to a directory containing one of the above files. If "OpenCV_REQUIRED" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): learning_xarm/CMakeLists.txt:10 (find_package) -- Configuring incomplete, errors occurred! See also "/home/sparks/xarm_ws/build/CMakeFiles/CMakeOutput.log". See also "/home/sparks/xarm_ws/build/CMakeFiles/CMakeError.log". make: *** [Makefile:4072：cmake_check_build_system] 错误 1 该错误如何解决，并给出具体解决步骤及操作代码

这个错误是由于找不到名为 "OpenCV_REQUIRED" 的软件包配置文件引起的。解决这个问题的步骤如下：

1. 首先，确认你已经安装了OpenCV库。确保你的系统中已经安装了OpenCV的开发包或SDK。

2. 检查你的CMakeLists.txt文件，确认是否正确设置了OpenCV的依赖项。你可以在CMakeLists.txt文件中找到类似于以下代码段：

   find_package(OpenCV REQUIRED)

确保这一行代码正确地引用了OpenCV库。

3. 确保你的CMAKE_PREFIX_PATH环境变量中包含了OpenCV的安装路径。你可以通过以下命令来设置CMAKE_PREFIX_PATH变量：

   export CMAKE_PREFIX_PATH=/path/to/opencv:$CMAKE_PREFIX_PATH

其中，/path/to/opencv 是你安装OpenCV库的路径。

4. 如果你的OpenCV安装路径不在默认路径中，你还可以通过设置 OpenCV_REQUIRED_DIR 变量来指定包含 OpenCV_REQUIREDConfig.cmake 文件的目录。例如：

   export OpenCV_REQUIRED_DIR=/path/to/opencv_required_config_directory

其中，/path/to/opencv_required_config_directory 是包含 OpenCV_REQUIREDConfig.cmake 文件的目录路径。

完成上述步骤后，重新运行CMake和make命令来构建你的项目，应该就能解决这个错误了。希望对你有所帮助！