Your environment has been set up for using Node.js 4.4.3 (ia32) and npm.
C:\Documents and Settings\Administrator>npm install -g browser-sync
npm ERR! Windows_NT 5.1.2600
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\
node_modules\npm\bin\npm-cli.js" "install" "-g" "browser-sync"
npm ERR! node v4.4.3
npm ERR! npm v2.15.1
npm ERR! code UNABLE_TO_VERIFY_LEAF_SIGNATURE
npm ERR! unable to verify the first certificate
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! C:\Documents and Settings\Administrator\npm-debug.log
C:\Documents and Settings\Administrator>
求助
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