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i'm trying to import that libraries into eclipse using that tutorial. But i retrieve that error:

**** Build of configuration Debug for project OpenCVExample****

**** Internal Builder is used for build               ****
gcc -IC:\OpenCV2.1\include\ -O0 -Wall -o src\example.o ..\src\example.c
Build error occurred, build is stopped
Time consumed: 68  ms.

What can i do? i follow all the tutorial line by line, can someone help me? Thanks!

Bobo87
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1 Answers1

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The error message doesn't say what the error was, it just says that there was a problem.

Looking at the tutorial I can say there is one obvious error: while the tutorial assumes you installed v2.1, it gives you the link to download and install v2.2 (OpenCV-2.2.0-win32-vs2010.exe).

So one thing you need to pay attention is: if the version you installed is different from the one used in that tutorial, you need to take this into consideration when adjusting:

  • The environment variable PATH;
  • The directory name in C/C++ Build -> Setting -> GCC C++ Compiler -> Directories;
  • And the name of the libraries in MinGW C++ Linker -> Libraries.

For instance, the library names for v2.1 are:

cv210
highgui210
cxcore210
cvaux210
cxts210
ml210
opencv_ffmpeg210

But if you are using v2.2, you need to use:

cv220
highgui220
cxcore220
cvaux220
cxts220
ml220
opencv_ffmpeg220

Capiche?

Now, if you continue to have problems you can consider installing Visual Studio 2010 Express, which you can use and download for free. This post will show you how to configure it for OpenCV.

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karlphillip
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