I am having same problem, My node install is 4.4.0
-bash-4.1$ npm install appdynamics@4.1.7
npm ERR! Linux 2.6.32-573.3.1.el6.x86_64
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "appdynamics@4.1.7"
npm ERR! node v4.4.0
npm ERR! npm v2.14.20
npm ERR! code ENOTSUP
npm ERR! notsup Unsupported
npm ERR! notsup Not compatible with your version of node/npm: appdynamics@4.1.7
npm ERR! notsup Required: {"node":">=0.8.0 <=0.12.7"}
npm ERR! notsup Actual: {"npm":"2.14.20","node":"4.4.0"}
How do I fix this?