TypeError: (0 , _emberQunit.start) is not a function

Trying to create and run acceptance tests, app uses ember-simple-auth so I need to use ember-qunit. Using the tests route, there is a global error TypeError: (0 , _emberQunit.start) is not a function. I assume this is referring to the start() function " import { start } from ‘ember-qunit’; " in test-helper.js. I’ve tried reinstalling ember-qunit, installing/reinstalling ember-cli-qunit and I’m at a loss. Ember 2.13, ember-qunit 4.6