Meteor-client-bundler with webpack __meteor_runtime_config__ is not defined

I am trying to use this with my webpack project

but I get this error

ReferenceError: __meteor_runtime_config__ is not defined

Here are the steps I did

create a new meteor project

then I run the client bundler like this

meteor-client bundle —source=./ —destination=./meteor-client.bundle.js —config=meteor-client.config.json

and here is the config

{
  "runtime": {
    "DDP_DEFAULT_CONNECTION_URL": "http://localhost:3000"
  },
  "import": [
    "meteor-base@1.3.0",
    "mongo@1.4.2",
    "reactive-var@1.0.11",
    "jquery@1.11.10",
    "tracker@1.1.3",
    "shell-server@0.3.1",
    "react-meteor-data"
  ]
}

then I copy my meteor-client.js to my webpack project node_modules

and import it like this

import 'meteor-client'

then I bundle webpack and run dev-server and I get the above mentioned error.