I also got the same issue.
# npm install appdynamics@4.1.0
npm http GET https://registry.npmjs.org/appdynamics/4.1.0
npm http 304 https://registry.npmjs.org/appdynamics/4.1.0
npm http GET http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-native.tgz
npm http GET http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-jre.tgz
npm http GET http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-zmq.tgz
npm http GET http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-proxy.tgz
npm http GET http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-protobuf.tgz
npm http 200 http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-jre.tgz
npm http 200 http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-proxy.tgz
npm http 403 http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-zmq.tgz
npm ERR! fetch failed http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-zmq.tgz
npm ERR! Error: 403 Forbidden
npm ERR! at WriteStream.<anonymous> (/usr/lib/node_modules/npm/lib/utils/fetch.js:57:12)
npm ERR! at WriteStream.emit (events.js:117:20)
npm ERR! at fs.js:1610:14
npm ERR! at /usr/lib/node_modules/graceful-fs/graceful-fs.js:103:5
npm ERR! at Object.oncomplete (fs.js:108:15)
npm ERR! If you need help, you may report this log at:
npm ERR! <http://github.com/isaacs/npm/issues>
npm ERR! or email it to:
npm ERR! <npm-@googlegroups.com>
npm ERR! System Linux 3.10.0-327.el7.x86_64
npm ERR! command "node" "/bin/npm" "install" "appdynamics@4.1.0"
npm ERR! cwd /home/basu/node
npm ERR! node -v v0.10.42
npm ERR! npm -v 1.3.6
npm http 403 http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-protobuf.tgz
npm ERR! fetch failed http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-protobuf.tgz
npm http 403 http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-native.tgz
npm ERR! fetch failed http://packages.appdynamics.com/npm/4.1.0.0/appdynamics-native.tgz
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /home/basu/node/npm-debug.log
npm ERR! not ok code 0
Does anyone has a solution?
Thanks,
Arunava