Meteor-Now Deployment Error "sh: meteor: not found"

I have problems deploying my meteor app with meteor-now. I followed this tutorial here. I also tried deploying with ZEIT's OSX Client but it always throws the same error.
Does anyone know a workaround?

Edit 1: This is my package.json

 {
  "name": "helloworld",
  "private": true,
  "scripts": {
    "start": "meteor run"
  },
  "dependencies": {
    "babel-runtime": "^6.26.0",
    "meteor-node-stubs": "^0.3.2"
  }
}

from Meteor-Now Deployment Error "sh: meteor: not found"