cant npm install duo@latest

[stephenmathieson]

this is a blocker atm

∴ npm install --save-dev duo@latest
npm WARN deprecated native-or-bluebird@1.2.0: 'native-or-bluebird' is deprecated. Please use 'any-promise' instead.
npm WARN deprecated graceful-fs@2.0.3: graceful-fs version 3 and before will fail on newer node releases. Please update to graceful-fs@^4.0.0 as soon as possible.
-
> leveldown@1.4.4 install /Users/stephenmathieson/dev/src/github.com/segmentio/meta-ui/node_modules/duo/node_modules/duo-cache/node_modules/level/node_modules/leveldown
> prebuild --install

npm ERR! Darwin 15.0.0
npm ERR! argv "/Users/stephenmathieson/.nvm/versions/node/v4.2.4/bin/node" "/Users/stephenmathieson/.nvm/versions/node/v4.2.4/bin/npm" "install" "--save-dev" "duo@latest"
npm ERR! node v4.2.4
npm ERR! npm  v2.14.12

npm ERR! version not found: memoize-sync@0.0.2
npm ERR! 
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/stephenmathieson/dev/src/github.com/segmentio/meta-ui/npm-debug.log