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add workaround for DLL errors in Windows Server. #264

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Nov 22, 2019
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add workaround for DLL errors in Windows Server. #264

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add workaround for DLL errors in Windows Server.
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@pakal
pakal committed Nov 22, 2019
commit 68bb866cf8abdad5ffe4ec867d3668c106f2997f
2 changes: 2 additions & 0 deletions 2 README.md
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Expand Up @@ -52,6 +52,8 @@ A: If the import fails on Windows, make sure you have [Visual C++ redistributabl

Windows N and KN editions do not include Media Feature Pack which is required by OpenCV. If you are using Windows N or KN edition, please install also [Windows Media Feature Pack](https://support.microsoft.com/en-us/help/3145500/media-feature-pack-list-for-windows-n-editions).

If you have Windows Server 2012+, media DLLs are probably missing too; please install the Feature called "Media Foundation" in the Server Manager. Beware, some posts advise to install "Windows Server Essentials Media Pack", but this one requires the "Windows Server Essentials Experience" role, and this role will deeply affect your Windows Server configuration (by enforcing active directory integration etc.); so just installing the "Media Foundation" should be a safer choice.

If the above does not help, check if you are using Anaconda. Old Anaconda versions have a bug which causes the error, see [this issue](https://github.com/skvark/opencv-python/issues/36) for a manual fix.

If you still encounter the error after you have checked all the previous solutions, download [Dependencies](https://github.com/lucasg/Dependencies) and open the ``cv2.pyd`` (located usually at ``C:\Users\username\AppData\Local\Programs\Python\PythonXX\Lib\site-packages\cv2``) file with it to debug missing DLL issues.
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