[ncl-install] problems

[曹璨]

hello, I really your help. I installed the ncl on my MacBook. But when I input the ncl -v, there was always a message that Library not loaded: /opt/X11/lib/libcairo.2.dylib 
  Referenced from: /opt/anaconda3/envs/ncl_stable/bin/ncl
 
  Reason: image not found
 
Abort trap: 6

What should I do?
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