[MacPorts] #62177: mpv @0.33.0_2+audiocd+bluray+bundle+dvd+libarchive+network+opengl+osd+python39+rubberband: cannot convert value of type 'CALayerContentsFormat' to specified type 'String'

[MacPorts]

#62177: mpv
@0.33.0_2+audiocd+bluray+bundle+dvd+libarchive+network+opengl+osd+python39+rubberband:
cannot convert value of type 'CALayerContentsFormat' to specified type
'String'
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  Reporter:  JDLH    |      Owner:  ionic@…
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.6.4
Resolution:          |   Keywords:
      Port:  mpv     |
---------------------+----------------------

Comment (by i0ntempest):

 In that case I'd recommend switching to Xcode 9.4.1, which matches your OS
 (and is what 10.13 buildbot uses). I'd recommend sticking with Xcode 9 on
 10.13 unless you need Xcode 10 for specific reasons.

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Ticket URL: <https://trac.macports.org/ticket/62177#comment:5>
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