I've been trying to install adapt authoring tool in my mac OSX 10.10.2 but I believe all the development environment was install correctly. However, every time I try to run grunt server on it will show me this.

Jareds-Mac-Pro:adapt_authoring jwright71$ grunt server

Running "copy:main" (copy) task

Copied 14 files

Running "less:dist" (less) task

File frontend/src/adaptbuilder/css/adapt.css created.

Running "handlebars:compile" (handlebars) task

File frontend/src/templates/templates.js created.

Running "start" task

dyld: lazy symbol binding failed: Symbol not found: _node_module_register

  Referenced from: /Users/jwright71/Documents/Sites/adapt_authoring/node_modules/connect-mongo/node_modules/mongodb/node_modules/bson/build/Release/bson.node

  Expected in: dynamic lookup

dyld: Symbol not found: _node_module_register

  Referenced from: /Users/jwright71/Documents/Sites/adapt_authoring/node_modules/connect-mongo/node_modules/mongodb/node_modules/bson/build/Release/bson.node

  Expected in: dynamic lookup

Trace/BPT trap: 5

I have make my research and I find this solution as an alternative to solve it but I rather ask to the community first for suggestions instead trying something that it won't help to launch the authoring tool on my computer. Can you help me with this issue please!