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Last active December 25, 2015 07:29
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Sample Error Message in Ember
Uncaught ReferenceError: <App.ModalController:ember820>#needs does not include `preview`.
To access the preview controller from <App.ModalController:ember820>,
<App.ModalController:ember820> should have a `needs` property that is
an array of the controllers it has access to.
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