WARN [preprocess]: Can not load "babel", it is not registered!

[UberMouse]

I'm having issues getting babel setup with Karma. I've installed the plugin with
npm install --save-dev karma-babel-preprocessor
and included it in the plugins array in my karma config, annotated the paths for the preprocessor as so

preprocessors: {
  'src/**/*.js': ['babel'],
  'test/**/*.js': ['babel']
},

But I can't get karma to detect the loaded babel plugin for the preprocessor. Is there something I am missing?

My full karma config and package.json https://gist.github.com/UberMouse/4037d82e054b6c6eb2a8

[shuhei]

I can't find karma-mocha and karma-chrome-launcher in your package.json. It might be related to this issue.

[shuhei]

Also, your karma config file is named karma.config.js but it should be karma.conf.js to make karma load it automatically.

[shuhei]

Closing due to no response.