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Unhandled exception in Release version of Feature Detection and Feature Matching with FLANN

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Hello folks, I have OpenCV 3.2.0 installed on VS2017 CE. I built and compiled the tutorials on Feature Detection and Feature Matching with FLANN using code from http://docs.opencv.org/master/d7/d66/tutorial_feature_detection.html and http://docs.opencv.org/master/d5/d6f/tutorial_feature_flann_matcher.html. The debug version of the .exe files run successfully. However, the release version of both programs crash with the following warning: > Unhandled exception at> 0x00007FFAF4DE3159> (opencv_xfeatures2d320d.dll) in> flann.exe: 0xC0000005: Access> violation writing location> 0x000000000000001C. occurred Please can anyone tell me how to fix this? Thanks

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