TypeError: Cannot read property '$type' of undefined

[hrgui]

https://github.com/ui-router/react-hybrid/blob/master/src/decorateUIRouterViewConfigs.ts#L34

.state('account.view.list', {
        url: '/list?new&updated&sortBy',
        title: title,
        views: {
          'sub_header@': accountRoutesHelperServiceProvider.getAccountDetails(),
          '': {templateUrl: 'someTemplate.html'}

 const view = views[key];
      const selfView = selfViews[key];

In views, it gets defined as '$default', but selfViews define it as ''; what is the expected behavior here?

Is the state definition wrong: should I update it to '$default'?

===
From https://github.com/angular-ui/ui-router/wiki/Multiple-Named-Views:

     // Relatively targets the unnamed view in this state's parent state, 'contacts'.		
        // <div ui-view/> within contacts.html		
        "" : { }, 		

https://github.com/angular-ui/ui-router/blob/b2b906b0ad45f06ed114b0c042bdc60a176c60a8/src/statebuilders/views.ts#L56

[hrgui]

I did find a workaround:

In my AngularJS definitions, everytime I see views[''], I would have to update it to views['$default']

[kwalker3690]

We're also running into this issue, would love to know if the workaround prescribed here is the suggestion, or if this can be fixed within the repo itself.

[kwalker3690]

I'm not sure this was actually solved - as mentioned here by the commit author, this relevant commit was somehow not merged: 323faf1#diff-27859f2b9609526b65d934ba68e2dbd1R35

I'm on v0.3.0 and still experiencing this issue. Please reopen the issue or share further context as to how it should remain closed! Thanks for the help in advance.