Could not find a package configuration file provided by "Sophus",SophusConfig.cmake

CMake Error at CMakeLists.txt:5 (find_package):

By not providing "FindSophus.cmake" in CMAKE_MODULE_PATH this project has

asked CMake to find a package configuration file provided by "Sophus", but

CMake did not find one.

Could not find a package configuration file provided by "Sophus" with any

of the following names:

SophusConfig.cmake

sophus-config.cmake

Add the installation prefix of "Sophus" to CMAKE_PREFIX_PATH or set

"Sophus_DIR" to a directory containing one of the above files.  If "Sophus"

provides a separate development package or SDK, be sure it has been

installed.

-- Configuring incomplete, errors occurred!

实际上是因为我从git上clone下来sophus后并没有编译，导致没有sophus，也就是没有安装sophus。

解决：

cd Sophus

cmake .

make

(sudo make install )