[opencv 4.0.0 installation] Failed build project

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Hi i want to learn computer vision and this first time using opencv.
Please guide me to fix my error.
Step to reproduce :
1. I follow this step : https://docs.opencv.org/3.4/d7/d9f/tu...
2. Eclipse oxygen 3 C/C++
3. Set include path : /usr/local/include/opencv2
4. Set library : /usr/local/lib
5. Call libraries : opencv_core, opencv_high_ui, opencv_imgcodecs
6. Create main.cpp just for test

#include <opencv2/opencv.hpp>
using namespace cv;
int main(int argc, char** argv) {
    Mat inputImage = imread(argv[1]);
    imshow("Input Image", inputImage);
    waitKey(0);
    return 0;

}

Last commit opencv 000a13b6a35f65eb04e5c78721364406718f5d81 and for opencv_contrib 2b5eca6e1726afa2c179da672ad3a79a019da185.

Then when i build my project i got :

Description Resource    Path    Location    Type
Program "/ndk-build.cmd" not found in PATH  OpenCV Tutorial 2 - Mixed Processing            C/C++ Problem
Project 'OpenCV Library - @OPENCV_VERSION@' is missing required source folder: 'gen'    OpenCV Library - @OPENCV_VERSION@       Build path  Build Path Problem
Project 'OpenCV Library - @OPENCV_VERSION@' is missing required source folder: 'src'    OpenCV Library - @OPENCV_VERSION@       Build path  Build Path Problem
Project 'OpenCV Sample - 15 puzzle' is missing required source folder: 'gen'    OpenCV Sample - 15 puzzle       Build path  Build Path Problem
Project 'OpenCV Sample - camera-calibration' is missing required source folder: 'gen'   OpenCV Sample - camera-calibration      Build path  Build Path Problem
Project 'OpenCV Sample - color-blob-detection' is missing required source folder: 'gen' OpenCV Sample - color-blob-detection        Build path  Build Path Problem
Project 'OpenCV Sample - face-detection' is missing required source folder: 'gen'   OpenCV Sample - face-detection      Build path  Build Path Problem
Project 'OpenCV Sample - image-manipulations' is missing required source folder: 'gen'  OpenCV Sample - image-manipulations     Build path  Build Path Problem
Project 'OpenCV Tutorial 1 - Camera Preview' is missing required source folder: 'gen'   OpenCV Tutorial 1 - Camera Preview      Build path  Build Path Problem
Project 'OpenCV Tutorial 2 - Mixed Processing' is missing required source folder: 'gen' OpenCV Tutorial 2 - Mixed Processing        Build path  Build Path Problem
Project 'OpenCV Tutorial 3 - Camera Control' is missing required source folder: 'gen'   OpenCV Tutorial 3 - Camera Control      Build path  Build Path Problem
Project 'OpenCV Tutorial 4 - Use OpenCL' is missing required source folder: 'gen'   OpenCV Tutorial 4 - Use OpenCL      Build path  Build Path Problem
Project 'OpenCV_JavaAPI_Tests' is missing required source folder: 'gen' OpenCV_JavaAPI_Tests        Build path  Build Path Problem
Project 'OpenCVEngineService' is missing required source folder: 'gen'  OpenCVEngineService     Build path  Build Path Problem
The project cannot be built until build path errors are resolved    OpenCV Library - @OPENCV_VERSION@       Unknown Java Problem
The project cannot be built until build path errors are resolved    OpenCV Sample - 15 puzzle       Unknown Java Problem
The project cannot be built until build path errors are resolved    OpenCV Sample - camera-calibration      Unknown Java Problem
The project cannot be built until build path errors are resolved    OpenCV Sample - color-blob-detection        Unknown Java Problem
The project cannot be built until build path errors are resolved    OpenCV Sample - face-detection      Unknown Java Problem
The project cannot be built until build path errors are resolved    OpenCV Sample - image-manipulations     Unknown Java Problem
The project cannot be built until build path errors are resolved    OpenCV Tutorial 1 - Camera Preview      Unknown Java Problem
Program "/ndk-build ...