Model hook throwing error. Ember

In my application users have many meals. meals belong to a user. I have it so that a user can currently post a meal by creating a record and saving it. Immediately after completing this my console threw the error:

Error: Assertion Failed: You need to pass a model name to the store's modelFor method at new Error (native)

I then wrote my model hook for getting meals, when I started to get the error:

TypeError: Cannot read property 'some' of undefined

I am not certain what is causing this. Here is my code:

User Model:

import DS from 'ember-data';
import { hasMany } from 'ember-data/relationships';

export default DS.Model.extend({
  email: DS.attr('string'),
  height: DS.attr('number'),
  weight: DS.attr('number'),
  age: DS.attr('number'),
  tdee: DS.attr('number'),
  gender: DS.attr('string'),
  activity_level: DS.attr('number'),
  meals: hasMany('meal')
});

Meal model:

import DS from 'ember-data';
import { belongsTo, hasMany } from 'ember-data/relationships';

export default DS.Model.extend({
  meal_type: DS.attr('string'),
  created_at: DS.attr('date'),
  user: belongsTo('user'),
  // meal_items: hasMany('meal_item')
});

Meal route:

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
    return this.get('store').findAll('meal');
  },
  actions: {
    createMeal(data) {
      let meal = this.get('store').createRecord('meal', data);
      meal.save();
    }
  }
});

I am new to ember, but have a hunch it may be related to explicit inverses? An advice is appreciated. I can post more code if something needs clarification.