Hi, I am not sure if installing some Macport packages or Anaconda python causes the NCL to fail. It works well before. My Mac OS is 10.14.6. Do you know how to fix it? Thanks Tao /Users/tzhang/Disk> ncl dyld: Library not loaded: @rpath/libgcc_s.1.1.dylib Referenced from: /opt/local/lib/libgcc/libgcc_s.1.dylib Reason: image not found Abort