Appium 2.0 installation failure on Mac

Trying to install latest appium 2.0 on mac and unable to move forward after this error.

appium -v

Fatal Error: Appium had trouble loading the extension installation cache file (/usr/local/bin/appium/node_modules/.cache/appium/extensions.yaml). It may be invalid YAML. Specific error: ENOTDIR: not a directory, open ‘/usr/local/bin/appium/node_modules/.cache/appium/extensions.yaml’
at /usr/local/lib/node_modules/appium/lib/extension/manifest.js:410:19
at Manifest.read (/usr/local/lib/node_modules/appium/lib/extension/manifest.js:463:7)
at loadExtensions (/usr/local/lib/node_modules/appium/lib/extension/index.js:22:3)
at init (/usr/local/lib/node_modules/appium/lib/main.js:175:40)
at main (/usr/local/lib/node_modules/appium/lib/main.js:283:22)
krunal-> $ open '/usr/local/bin/appium/node_modules/.cache/appium/exten