I will show you some differences between your includes and mine. Closed for the following reason the question is answered right answer was accepted by indira close date 2016 04 11 140749204036.
All Error Corrrector In Visual C Pdf Library Computing
Error c2871 cv a namespace with this name does not exist. And everything was all right. Hi i try to make vis mpegflow make vis g viscpp o vis o3 dstdcconstantmacros lopencvhighgui lopencvimgproc lopencvcore lpng lswscale lavdevice lavformat lavcodec lswresample lavutil lpthread lbz2 lz lc lrt idependenciesinclude ldependencieslib viscpp1017. I think that your problem is on setting the v c 2010 environment. C2871cpp compile with. But apparently the two includes include just fine. I found no problem.
Mine is a c application running on net 2003 when ever i use using namespace std. Include opencv2corecorehpp include opencv2highguihighguihpp include iostream using namespace cv. The following sample generates c2871. Symbol cv could not be resolved. C namespace a int fnint i return i. Include cvh include highguih using namespace cv.
Int main int argc char argv error. I installed opencv via this guide from the docs changing the git lines to add branch 34 and changing the visual studio version to visual studio 15 2017. Hi description includes reply from stldude of codeguru member i have some issues while using system namespace. The include stdafxh must be the first include. The example that the opencv folks provide does not mention this even when theyre providing an example for doing this specifically with visual studio. I can see why net programming is treated as a skill in and of itself.
I had this problem as well and the solution was maddeningly simple. This is on windows 10 x64 with visual studio 2017 and opencv 341. Namespace b using namespace d. Everything appears to build fine and i add opencv to path and make the local property pages per this page from the guide. C2871 because d is not a namespace using namespace a. Cv is not a namespace name using namespace cv.
I tried your code. I dont know what your issue is as you havent provided any useful code to test. Wow thats all i can say. I believe the person in that threads problem was they needed to include string. After much digging i included using mscorlibdll and now it seems to compile.
Gallery of Error C2871 Cv A Namespace With This Name Does Not Exist
