windows install missing files [closed]

asked 2017-10-20 17:55:20 -0500

dr_eck gravatar image

I just installed OpenCV from the SourceForge installer, so I should have the pre-built libraries. I also defined OPENCV_DIR and added %OPENCV_DIR%\bin to the path. Then I created a new app in VS2017 and added the statements from the "Test It!" section of the 'How to build applications with OpenCV inside the "Microsoft Visual Studio"' tutorial.

Problem #1: VS could not find <opencv2\core.hpp> When I went to this folder, I discovered that there is only one file in it, opencv.hpp. Where are the other files? I tried downloading the OpenCV 3.3 installer again and installing into a different folder, but the results were the same. Is the installer buggy?

Problem #2: This is probably a result of #1, but the namespace cv is not defined.

Do I have to install CMake and download the source from GitHub just to get started?

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Closed for the following reason the question is answered, right answer was accepted by berak
close date 2017-10-24 16:06:26.795811


  • the prebuild libs are for vs2015 only. for any other version, you WILL have to build from src, using cmake and all.

  • there should be a "build/include" or "build/install/include" folder there. use that, not the toplevel one.

berak gravatar imageberak ( 2017-10-20 18:06:19 -0500 )edit

Thank you very much for these tips. I found the build/include folder in the VS2015 version, and it has all of the include files. I also used VS2017 to build the latest sources. Unfortunately, I'm back to hide-and-seek. After some hunting, I found the CMakeBuilds folder, but there are no "build" and "sources" folders. Any advice? In the interim, I'll just keep hunting.

dr_eck gravatar imagedr_eck ( 2017-10-20 19:38:47 -0500 )edit

after you build the INSTALL project, everything nessecary should be in build/install

berak gravatar imageberak ( 2017-10-21 01:44:08 -0500 )edit

Thank you! In VS2017, there is an Install item on the CMAKE menu. I had not noticed that before (I'm new to CMake projects in VS2017.) Now I just have to figure out how to tell CMake where string, vector and stdarg.h are and I should be in business.

dr_eck gravatar imagedr_eck ( 2017-10-21 23:00:52 -0500 )edit

I rebuilt OpenCV and reran the install and everything worked perfectly. Wonderful!

dr_eck gravatar imagedr_eck ( 2017-10-24 16:01:37 -0500 )edit