Error in OpenShift: "phantomjs-node: You don't have 'phantomjs' installed"

I successfully created a script using phantomjs-node in local and I would like to host on OpenShift.

The thing is when I run my script hosted, I had this strange error:

phantom stderr: execvp(): No such file or directory phantomjs-node: You don't have 'phantomjs' installed

But as you can see, I put the dependancies in the package.json file:

"dependencies": {
  "express": "~3.4.4",
  "phantom": "*",
  "phantomjs": "*"
},

Any suggestions?

Edit:

This is how I initialize the phantomjs script:

var options = {
  port: 16000,
  hostname: "127.2.149.1",
  path: "/phantom_path/"
}
phantom.create(function(ph) {
  visitUrl(ph, 0, 0);
}, options);