ember-cli-mirage and babel error

I am following this tutorial: https://guides.emberjs.com/v2.8.0/tutorial/installing-addons/

and when i get to adding ember-cli-mirage it comes up with a build error and wont load the app:

Richards-MacBook-Air:super-rentals rpt$ ember s
WARNING: Node v8.9.1 has currently not been tested against Ember CLI and may result in unexpected behaviour.

Just getting started with Ember? Please visit http://localhost:4200/ember-getting-started to get going

Livereload server on http://localhost:49154
Serving on http://localhost:4200/
{ Error: read ECONNRESET
    at _errnoException (util.js:1024:11)
    at TLSWrap.onread (net.js:615:25)
 code: 'ECONNRESET', errno: 'ECONNRESET', syscall: 'read' }
File: ember-cli-mirage/utils/inflector.js
The Broccoli Plugin: [broccoli-persistent-filter:Babel] failed with:
SyntaxError: ember-cli-mirage/utils/inflector.js: Unexpected token (4:14)
export { singularize, pluralize } from 'ember-inflector';

export { Ember.String.capitalize as capitalize, Ember.String.camelize as camelize, Ember.String.dasherize as dasherize, Ember.String.underscore as underscore };
    at Parser.pp.raise (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/location.js:24:13)
    at Parser.pp.unexpected (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/util.js:82:8)
    at Parser.pp.expect (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/util.js:76:33)
    at Parser.pp.parseExportSpecifiers (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:772:12)
    at Parser.pp.parseExport (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:701:28)
    at Parser.parseExport (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/plugins/flow.js:713:20)
    at Parser.pp.parseStatement (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:115:90)
    at Parser.parseStatement (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/plugins/flow.js:655:22)
    at Parser.pp.parseTopLevel (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:30:21)
    at Parser.parse (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/parser/index.js:70:17)
    at Object.parse (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/node_modules/babylon/lib/index.js:45:50)
    at Object.exports.default (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/lib/helpers/parse.js:36:18)
    at File.parse (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/lib/transformation/file/index.js:574:40)
    at File.parseCode (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/lib/transformation/file/index.js:691:20)
    at /Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/lib/transformation/pipeline.js:167:12
    at File.wrap (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/lib/transformation/file/index.js:639:16)
    at Pipeline.transform (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/babel-core/lib/transformation/pipeline.js:165:17)
    at /Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/lib/parallel-api.js:123:26
    at initializePromise (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:567:5)
    at new Promise (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:1039:33)
    at Object.transformString (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/lib/parallel-api.js:117:12)
    at Babel.transform (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/index.js:110:22)
    at Babel.processString (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/index.js:216:15)
    at Promise.then.result.output (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/broccoli-persistent-filter/lib/strategies/persistent.js:41:23)
    at initializePromise (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:567:5)
    at new Promise (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:1039:33)
    at /Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/broccoli-persistent-filter/lib/strategies/persistent.js:40:18
    at tryCatch (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:525:12)
    at invokeCallback (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:538:13)
    at publish (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:508:7)
    at flush (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:2415:5)
    at _combinedTickCallback (internal/process/next_tick.js:131:7)
    at process._tickCallback (internal/process/next_tick.js:180:9)


The broccoli plugin was instantiated at: 
    at Babel.Plugin (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/broccoli-persistent-filter/node_modules/broccoli-plugin/index.js:7:31)
    at Babel.Filter [as constructor] (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/node_modules/broccoli-persistent-filter/index.js:64:10)
    at new Babel (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/broccoli-babel-transpiler/index.js:37:10)
    at EmberApp._addonTree (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:910:29)
    at EmberApp._processedVendorTree (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:944:20)
    at EmberApp._processedExternalTree (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:975:21)
    at EmberApp.appAndDependencies (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:1071:30)
    at EmberApp.javascript (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:1201:34)
    at EmberApp.toArray (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:1606:10)
    at EmberApp.toTree (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/broccoli/ember-app.js:1628:30)
    at module.exports (/Users/rpt/projects/super-rentals/ember-cli-build.js:23:14)
    at Class.setupBroccoliBuilder (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/models/builder.js:74:19)
    at Class.init (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/models/builder.js:54:10)
    at Class.superWrapper [as init] (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/core-object/lib/assign-properties.js:32:18)
    at new Class (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/core-object/core-object.js:32:33)
    at Class.run (/Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/tasks/serve.js:15:19)
    at /Users/rpt/projects/super-rentals/node_modules/ember-cli/lib/commands/serve.js:76:24
    at tryCatch (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:525:12)
    at invokeCallback (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:538:13)
    at /Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:606:14
    at flush (/Users/rpt/projects/super-rentals/node_modules/ember-cli/node_modules/rsvp/dist/rsvp.js:2415:5)
    at _combinedTickCallback (internal/process/next_tick.js:131:7)
    at process._tickCallback (internal/process/next_tick.js:180:9)

Can anyone point me in the right direction as to whats going wrong?

Im using ember 2.8.0 and using the latest version of ember-cli-mirage.

Please bare in mind I am really new to ember.