Using OpenCV in Eclipse (getting started) - c++

Question

I want to use OpenCV in Eclipse Neon for C++. Unfortunately, there are some linking errors while building the project.
I followed this tutorial and passed following steps:
Installing Eclipse Neon for C/C++ (Windows 64-bit) http ://www.eclipse.org/downloads/packages/eclipse-ide-cc-developers/neon1a
Installing MinGW (mingw-get-setup.exe, https ://sourceforge.net/projects/mingw/files/Installer/) in the folder C:\MinGW
Installing OpenCV 3.1 for Windows (http ://opencv.org/downloads.html) in the folder C:\opencv
Creating a new and empty C++ project in eclipse
Adding the includes and libaries like described in the tutorial
Adding a source file Test.cpp which does not gives any errors
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main(int argc, char** argv)
{
Mat im = imread(argc == 2 ? argv[1] : "lenna.png", 1);
if (im.empty())
{
cout << "Cannot open image!" << endl;
return -1;
}
imshow("image", im);
waitKey(0);
return 0;
}
Building the project
Building the project returns following errors:
19:00:45 **** Incremental Build of configuration Release for project OpenCV ****
Info: Internal Builder is used for build
g++ "-IC:\\opencv\\build\\include" -O3 -Wall -c -fmessage-length=0 -o Test.o "..\\Test.cpp"
g++ "-LC:\\opencv\\build\\x64\\vc12\\lib" "-LC:\\opencv\\build\\x64\\vc14\\lib" -o OpenCV.exe Test.o -lopencv_world310
Test.o:Test.cpp:(.text$_ZN2cv6StringC1EPKc[__ZN2cv6StringC1EPKc]+0x2d): undefined reference to `cv::String::allocate(unsigned int)'
Test.o:Test.cpp:(.text$_ZN2cv3MatD1Ev[__ZN2cv3MatD1Ev]+0x15): undefined reference to `cv::Mat::deallocate()'
Test.o:Test.cpp:(.text$_ZN2cv3MatD1Ev[__ZN2cv3MatD1Ev]+0x6d): undefined reference to `cv::fastFree(void*)'
Test.o:Test.cpp:(.text.startup+0x4f): undefined reference to `cv::imread(cv::String const&, int)'
Test.o:Test.cpp:(.text.startup+0x56): undefined reference to `cv::String::deallocate()'
Test.o:Test.cpp:(.text.startup+0xc0): undefined reference to `cv::imshow(cv::String const&, cv::_InputArray const&)'
Test.o:Test.cpp:(.text.startup+0xc7): undefined reference to `cv::String::deallocate()'
Test.o:Test.cpp:(.text.startup+0xd3): undefined reference to `cv::waitKey(int)'
Test.o:Test.cpp:(.text.startup+0x134): undefined reference to `cv::String::deallocate()'
Test.o:Test.cpp:(.text.startup+0x161): undefined reference to `cv::String::deallocate()'
collect2.exe: error: ld returned 1 exit status
19:00:45 Build Finished (took 781ms)
Where can be the error?
Thank you for helping!