Trouble getting Ember Validations to work - validation

Question

Since Ember doesn't support form validation out of the box (as of this writing anyway), I am looking for a way to validate forms. I came across Dockyards ember-validations and the consensus seems to be that this is the goto module for form validation in EmberJS.
I'm trying to get it to work, but I'm having some trouble getting started.
I'm not using Ember CLI as referenced in the docs, so I have downloaded a compiled ember-validations.js from http://builds.dockyard.com/ and have included ember-validations.js in my apps js file.
The docs now say to pass the validations.mixin into a controller:
So I'm using:
App.MemberaddController = App.FamilyController.extend(EmberValidations.Mixin,{
needs: ["family","notifications"],
familyController: Em.computed.alias('controllers.family'),
notifications: Em.computed.alias('controllers.notifications'),
validations: {
firstname: {
presence: true,
presence : {message: 'mag niet leeg zijn'}
}
},
init: function() {
this.set('familyController.pageTitle', "Gezinslid toevoegen");
},
<etc...>
}
However in the browser I'm seeing
Uncaught ReferenceError: EmberValidations is not defined
Looking at the ember-validations.js I can see the mixin file being referenced as Ember.Validations.Mixin.
So when I pass that to my controller, like
App.MemberaddController = App.FamilyController.extend(Ember.Validations.Mixin,{
I'm seeing:
Error while processing route: memberadd Cannot read property 'invoke' of undefined TypeError: Cannot read property 'invoke' of undefined
In the ember-validations.js file at the _validate function.
What am I doing wrong here?

Answer 1

First on the off chance this is a new project and you have the option to use ember-cli I recommend you do so, the community is moving in that direction.
That said I think your bug is in here
validations: {
firstname: {
presence: true, <-- uneeded
presence <-- remove this space: {message: 'mag niet leeg zijn'}
}
},
should look like this
validations: {
firstname: {
presence: {message: 'mag niet leeg zijn'}
}
},