how to deal with this problem?

[likezjuisee]

CMake Warning at CMakeLists.txt:66 (find_package):
By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "OpenCV", but
CMake did not find one.

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

OpenCVConfig.cmake
opencv-config.cmake

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

CMake Error at CMakeLists.txt:72 (if):
if given arguments:

"EQUAL" "2"

Unknown arguments specified

-- Configuring incomplete, errors occurred!
See also "/home/test/like/Fastext/FASText/Release/CMakeFiles/CMakeOutput.log".