Appium 1.4.13 How to resolve error: Could not detect Mac OS X Version from sw_vers output: ‘10.12 ‘]?

Environment : macOS Sierra, Appium version 1.4.13 (Draco)

I am not able run appium. Please help, How to fixed this issue?

appium doctor has not worked.
Error :
info AppiumDoctor ### Diagnostic starting ###
info AppiumDoctor ✔ Xcode is installed at: /Applications/Xcode.app/Contents/Developer
[Error: Could not detect Mac OS X Version from sw_vers output: ‘10.12

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