?因為項目需要使用到g2o，所以自己從git上面clone下來，

git clone https://github.com/RainerKuemmerle/g2o.git

然后：

cd g2o

mkdir build

cd build

cmake ..

make -j4

?編譯完成，并在CMakeLists.txt使用g2o：

set(G2O_DIR ..)

find_package(....

但是后面報這個錯誤：

CMake Error at CMakeLists.txt:11(find_package):
By not providing "FindG2O.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "G2O", but
CMake did not find one.

Could not find a package configuration file provided by "G2O" with any of
the following names:

G2OConfig.cmake g2o-config.cmake

Add the installation prefix of "G2O" to CMAKE_PREFIX_PATH or set "G2O_DIR"
to a directory containing one of the above files. If "G2O" provides a
separate development package or SDK, be sure it has been installed.

-- Configuring incomplete, errors occurred!

?

其實是我鏈接的g2o錯誤了，應該這樣：

LIST( APPEND CMAKE_MODULE_PATH /XXX/g2o/cmake_modules ) SET( G2O_ROOT /home/xxx/g2o ) FIND_PACKAGE( G2O REQUIRED )
然后就可以啦。

轉載于:https://www.cnblogs.com/YouXiangLiThon/p/8671321.html

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