Not works with jquery

I use jquery in my project. After version 0.12.8 it does not work with jquery.

Prt of my webpack.config is;

resolve: {
    modules: [
      path.resolve(__dirname, 'node_modules/grapesjs/src'),
      path.resolve(__dirname, 'node_modules')
    ],
    alias: {
      'cash-dom': 'jquery'
    }
  },
  externals: {
    'jquery': 'jQuery'
  },

When I try to drop a block it throws;

ComponentsView.js:76 Uncaught TypeError: Cannot read property 'length' of undefined at child.addToCollection (ComponentsView.js:76) at child.addTo (ComponentsView.js:22) at triggerEvents (backbone.js:371) at triggerApi (backbone.js:356) at eventsApi (backbone.js:155) at child.Events.trigger (backbone.js:346) at child._onModelEvent (backbone.js:1187) at triggerEvents (backbone.js:372) at triggerApi (backbone.js:357) at eventsApi (backbone.js:155)