title: Error: opencv2/core/core.hpp: No such file or directory
body: <p>I have used <code>Code::Blocks 10.05</code> with <code>OpenCV-2.4.0</code> I have tried to compile a code samples from <code>C:\opencv\samples\cpp</code></p>
  
  <pre><code>#include "opencv2/core/core.hpp"
  #include "opencv2/imgproc/imgproc.hpp"
  #include "opencv2/calib3d/calib3d.hpp"
  #include "opencv2/highgui/highgui.hpp"
  #include &lt;stdio.h&gt;
  #include &lt;string.h&gt;
  #include &lt;time.h&gt;
  
  using namespace cv;
  using namespace std;
  
  const char * usage =....
  </code></pre>
  
  <p>The compiler of Code::Blocks say me:</p>
  
  <p><code>C:\opencv\samples\cpp\calibration.cpp|1|Fattal Error: opencv2/core/core.hpp: No such file or directory|</code></p>
  
  <p>Is that means I must to change the include code? with this path where my own include folder is? Thats the path from my <code>core.hpp</code> file <code>C:\opencv\modules\core\include\opencv2\core</code></p>