CMake Error at RRT-Plugin-master/CMakeLists.txt:23 (find_package): By not providing "FindOMPL.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "OMPL", but CMake did not find one. Could not find a package configuration file provided by "OMPL" with any of the following names: OMPLConfig.cmake ompl-config.cmake Add the installation prefix of "OMPL" to CMAKE_PREFIX_PATH or set "OMPL_DIR" to a directory containing one of the above files. If "OMPL" provides a separate development package or SDK, be sure it has been installed.

这个错误提示表明 CMake 找不到 OMPL 库的安装路径。有两种方法可以解决这个问题：

1. 将 OMPL 库的安装路径添加到环境变量 `CMAKE_PREFIX_PATH` 中。可以通过在终端中运行以下命令来设置环境变量：

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

2. 设置 `OMPL_DIR` 变量为 OMPL 库的安装路径。可以在 CMakeLists.txt 文件中添加以下代码：

set(OMPL_DIR /path/to/ompl)

其中 `/path/to/ompl` 为 OMPL 库的安装路径。如果您不知道 OMPL 库的安装路径，可以使用以下命令来查找：

sudo find / -name "OMPLConfig.cmake" -print 2>/dev/null

这个命令将会在系统中搜索名为 `OMPLConfig.cmake` 的文件，并输出它们的路径。