Workarounds on issues met when 'npm install' libs Anny

1. Time out

Just retry

2. Some unmet dependencies after 'npm install'

Just npm install XXX #(XXX means lib package name)

3. The package version is lower or deprecated in package.json

Modify the version in package.json: e.x. make changes from "zmq":  "1.0.1" to  "zmq":  ">=1.0.1"

4. No such environment: default

Please refer to http://www.cnblogs.com/limei/archive/2011/09/16/2178519.html