[MacPorts] #56935: Opencv3.4 +contrib +python27 fails to build

[MacPorts]

#56935: Opencv3.4 +contrib +python27 fails to build
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  Reporter:  jtressle   |      Owner:  stromnov
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.3
Resolution:             |   Keywords:  Opencv
      Port:  Opencv3.4  |
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Comment (by jtressle):

 I was able to fix the issue by:

 - uninstalling protobuf-cpp
 - installing protobuf3-cpp
 - running 'sudo port install opencv +contrib +python27'

 Thanks!

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Ticket URL: <https://trac.macports.org/ticket/56935#comment:2>
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