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2017-05-12 04:41:01 -0500 asked a question Build error Open CV3.2 with Extra Libs.

Hi all, I have a problem to build OpenCV with Extra Libs.

OS: Win 7 OpenCV: 3.2 Compile: VS2013

After set path of extra modules in OPENCV_EXTRA_MODULES_PATH, click "configure" The error messages are shown and stopped.

*CMake Error at cmake/OpenCVUtils.cmake:1043 (file): file DOWNLOAD cannot open file for write. Call Stack (most recent call first): opencv_contrib/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) opencv_contrib/modules/dnn/CMakeLists.txt:5 (include)

CMake Error at cmake/OpenCVUtils.cmake:1047 (message): Failed to download . Status= Call Stack (most recent call first): opencv_contrib/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) opencv_contrib/modules/dnn/CMakeLists.txt:5 (include)*

Any idea? Images are attached for your reference. image description image description