title: when i build "gomobile bind" a go project with opencv4 ,error come ,how can i solve
body: <p><strong>Gomobile bind error</strong></p>
  
  <p><img src="https://i.stack.imgur.com/949OJ.jpg" alt="Screen Shot"></p>
  
  <p>The array mean what, Anybody ever had this problem?</p>
  
  <pre><code>go build -tags ios -buildmode=c-archive -o/var/folders/vp/3ztk4jzn3hq35qfmp3qwrfm80000gp/T/gomobile-work135205628/faceTest-arm.a gobind failed: exit status 2
  # gocv.io/x/gocv
  In file included from calib3d.cpp:1:
  In file included from ../../../../../gocv.io/x/gocv/calib3d.h:5:
  In file included from /usr/local/Cellar/opencv/4.0.0/include/opencv4/opencv2/opencv.hpp:52:
  In file included from /usr/local/Cellar/opencv/4.0.0/include/opencv4/opencv2/core.hpp:52:
  /usr/local/Cellar/opencv/4.0.0/include/opencv4/opencv2/core/cvdef.h:659:10: 
  </code></pre>
  
  <p><strong>fatal error</strong>: 'array' file not found</p>