Arm Cross compile failed to include the header file

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I am trying to build a project, and it say

/opt/arm_linux_4.2/arm_linux_4.2/bin/arm-linux-g++ -Wno-write-strings -I . -ggdb -D _DEBUG -c Config.cpp -o Debug/Config.o
Config.cpp:6:39: error: opencv2/highgui/highgui.hpp: No such file or directory
Config.cpp: In member function 'void Config::saveConfig()':
Config.cpp:17: error: 'cv' has not been declared
Config.cpp:17: error: expected `;' before 'fs'
Config.cpp:18: error: 'fs' was not declared in this scope
Config.cpp: In member function 'void Config::loadConfig()':
Config.cpp:30: error: 'cv' has not been declared
Config.cpp:30: error: expected `;' before 'fs'
Config.cpp:31: error: 'fs' was not declared in this scope
make: *** [Debug/Config.o] Error 1

I can successfully cross the opencv, but in my opencv2 include folder, i only have

cvconfig.h
opencv_modules.hpp

With the Config, i already build with High UI.

[  1%] Built target gen-pkgconfig
[  6%] Built target zlib
[ 19%] Built target libjpeg
[ 23%] Built target libpng
[ 44%] Built target IlmImf
[ 60%] Built target opencv_core
[ 61%] Built target opencv_flann
[ 76%] Built target opencv_imgproc
[ 81%] Built target opencv_ml
[ 83%] Built target opencv_objdetect
[ 87%] Built target opencv_photo
[ 93%] Built target opencv_imgcodecs
[ 93%] Built target opencv_highgui
[100%] Built target opencv_features2d

Anything i missed?