# opencv_ffmpeg249_64d.lib is missing from 'bin' folder in 2.4.9 version

Unable to build programme in release and debug mode, every time gives a following error Debug mode : error LNK1181 : Cannot open input file 'opencv_ffmpeg249_64d.lib' Release mode : error LNK1181 : Cannot open input file 'opencv_ffmpeg249_64.lib' Using visual studio 2013 professional, opencv 2.4.9 & WIndows 7. What should i do ???

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Like said above, the file is not in the bin folder but in the lib folder. You can find it under your download and then build - x86 - vc10 - lib. Adapt to x64 if needed. Be sure that your path is linked correctly in your project.