## Troubleshooting

### OpenCV3

1. Qt5::Core (`/usr/local/.//mkspecs/macx-clang` does not exist):
  ```
    CMake Error at /usr/local/lib/cmake/Qt5Core/Qt5CoreConfig.cmake:17 (message):
      The imported target "Qt5::Core" references the file

         "/usr/local/.//mkspecs/macx-clang"

      but this file does not exist.
  ```
  Workaround:

  ```shell
  $ brew link --force qt5
  $ ln -s /usr/local/Cellar/qt5/5.6.0/mkspecs /usr/local/mkspecs
  $ ln -s /usr/local/Cellar/qt5/5.6.0/plugins /usr/local/plugins
  ```

2. VTK
  Workaround: Disable VTK

  Replace:
  ```cmake
  OCV_OPTION(WITH_VTK "Include VTK library support (and build opencv_viz module eiher)" ON IF (NOT ANDROID AND NOT IOS AND NOT WINRT AND NOT CMAKE_CROSSCOMPILING AND NOT APPLE) )
  ```

  With:
  ```cmake
  OCV_OPTION(WITH_VTK "Include VTK library support (and build opencv_viz module eiher)" OFF )
  ```