Preloader fails after the 0.8.3 meteor update

[sherwyns]

Here is the error I am getting -

Exception in defer callback: TypeError: Cannot read property 'async' of undefined at RouteController.extend.onRun (http://localhost:3000/packages/preloader.js?2255f007c283a1450640ad6266d97c9b7c5618e2:324:39) at RouteController.runHooks (http://localhost:3000/packages/iron-router.js?10a100ab994fa9eac06d91712a861bf78d6be533:851:16) at http://localhost:3000/packages/iron-router.js?10a100ab994fa9eac06d91712a861bf78d6be533:2199:16 at http://localhost:3000/packages/iron-router.js?10a100ab994fa9eac06d91712a861bf78d6be533:2187:21 at Deps.Computation._compute (http://localhost:3000/packages/deps.js?d9b2b2601bdab0f57291b38e7974a7190b8aac01:214:36) at new Deps.Computation (http://localhost:3000/packages/deps.js?d9b2b2601bdab0f57291b38e7974a7190b8aac01:148:10) at Object.Deps.autorun (http://localhost:3000/packages/deps.js?d9b2b2601bdab0f57291b38e7974a7190b8aac01:362:11) at http://localhost:3000/packages/iron-router.js?10a100ab994fa9eac06d91712a861bf78d6be533:2197:12 at http://localhost:3000/packages/iron-router.js?10a100ab994fa9eac06d91712a861bf78d6be533:2187:21 at Deps.Computation._compute (http://localhost:3000/packages/deps.js?d9b2b2601bdab0f57291b38e7974a7190b8aac01:214:36) debug.js:41

[MiroHibler]

It would be great if you could post a snippet of the code from your routes.js (or wherever you have your routes defined) so I could get the whole picture.

BTW, please use markdown to format the code when posting.

[sherwyns]

Let me know if this is what you are looking for -

Router.configure({
  layoutTemplate: 'layout',
  yieldTemplates: {
    'header': {to: 'header'},
    'leftSidebar': {to: 'leftSidebar'},
    'footer': {to: 'footer'}
  },
  preloadFiles: {
    // Use these on *ALL* pages
    'common': {
      js: ['http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js',
        'http://cdnjs.cloudflare.com/ajax/libs/jQuery-slimScroll/1.3.1/jquery.slimscroll.min.js',
        'http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.1.1/js/bootstrap.min.js',
        'http://cdnjs.cloudflare.com/ajax/libs/foundation/5.2.3/js/foundation.min.js',
        'http://cdnjs.cloudflare.com/ajax/libs/velocity/0.0.22/jquery.velocity.min.js',
        'http://cdnjs.cloudflare.com/ajax/libs/velocity/0.0.22/velocity.ui.js',
        '/vendors/bootstrap-datepicker/js/bootstrap-datepicker.js',
        '/vendors/jquery.loadingbar/jquery.loadingbar.min.js',
        '/vendors/jquery-knob/js/jquery.knob.js',
        '/vendors/jquery.easy-pie-chart/dist/jquery.easypiechart.min.js',
        // '/vendors/jquery.sparkline/dist/jquery.sparkline.min.js',
        '/vendors/jquery-autocomplete/jquery.autocomplete.min.js',
        '/vendors/jquery.growl/javascripts/jquery.growl.js',
        '/scripts/startup.js'
      ],
      css: [
        '/css/style.css',
        'http://fonts.googleapis.com/css?family=Open+Sans:400,700,300,600',
        'http://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.1.0/css/font-awesome.min.css',
        '/vendors/jquery.loadingbar/loadingbar.css',
        '/vendors/jquery.growl/stylesheets/jquery.growl.css',
        '/vendors/jquery.growl/stylesheets/jquery.growl.css'
      ]
    }
  },
  preloadHandler: function(filePath) {
    console.log(filePath);
    return true;
  },
});

Router.onBeforeAction(function(pause) {
  if (!Meteor.loggingIn() && !Meteor.user()) {
    Router.go('login');
    pause()
  }
}, {except: 'login'});

Router.map(function() {
  this.route('index', {
    path: "/",
    controller: PreloadController,
    waitOn: function() {
      return this.preload({});
    }
  });
  this.route('pressLink', {
    template: 'pressLink',
    controller: PreloadController,
    waitOn: function() {
      return this.preload({});
    }
  });
  this.route('login', {
    layoutTemplate: 'signIn',
    template: 'login',
    controller: PreloadController,
    waitOn: function() {
      return this.preload({});
    }
  });
  this.route('productDetail', {
    template: 'productDetail',
    controller: PreloadController,
    waitOn: function() {
      return this.preload({});
    }
  });
});

[MiroHibler]

Thank you! I've been able to pinpoint the root cause.

Please update the package (mrt update).

[MiroHibler]

Oh, by the way, since v0.3.0 you don't have to use

waitOn: function() {
      return this.preload({});
}

anymore - it's all automagic now ;)