webpack --migrate error

[taylorRohrer]

Do you want to request a feature or report a bug?
Bug v1=>v2

Command Ran
set NODE_ENV 'development' && node ../webpack-cli/bin/webpack.js --migrate webpack.config.js

v1 config

var webpack = require('webpack');
var nodeEnvironment = process.env.NODE_ENV
var _ = require('lodash');

var config = {
  entry: {
    'lib': './app/index.js',
    'email': './app/email.js'
  },
  plugins: [
    new webpack.DefinePlugin({
      'INCLUDE_ALL_MODULES': function includeAllModulesGlobalFn(modulesArray, application) {
        modulesArray.forEach(function executeModuleIncludesFn(moduleFn) {
          moduleFn(application);
        });
      },
      ENVIRONMENT: JSON.stringify(nodeEnvironment)
    })
  ],
  output: {
    path: __dirname + '/app',
    filename: 'bundle.js'
  },
  resolve: {
    root: __dirname + '/app'
  },
  module: {
    // preLoaders: [
    //   { test: /\.js?$/, loader: 'eslint', exclude: /node_modules/ }
    // ],
    loaders: [
      { test: /\.js$/, exclude: /(node_modules)/, loader: 'babel' },
      { test: /\.html/, exclude: [/(node_modules)/, /src\/index\.html/], loader: 'html-loader' },
      { test: /\.s?css$/, loader: 'style!css!sass' },
      { test: /\.(png|jpg)$/, loader: 'url-loader?mimetype=image/png' }
    ]
  },
  // extra configuration options. 
  // eslint: {
  //   configFile: '.eslintrc.js'
  // }
}

switch (nodeEnvironment) {
  case 'production':
    config.plugins.push(new webpack.optimize.UglifyJsPlugin());
    case 'preproduction':
      config.output.path = __dirname + '/dist';
      config.plugins.push(new webpack.optimize.DedupePlugin());
      config.plugins.push(new webpack.optimize.OccurenceOrderPlugin());

      config.output.filename = '[name].js';

      config.entry = {
        'lib': ['./app/index.js', 'angular', 'lodash'],
        'email': ['./app/email.js', 'angular']
      };

      config.devtool = 'source-map';
      config.output.libraryTarget = 'commonjs2';
    
    break;

  case 'test':
    config.entry = './index.js';
    break;

  case 'development':
    config.entry = {
      'lib': ['./app/index.js', 'webpack/hot/dev-server'],
      'email': ['./app/email.js', 'webpack/hot/dev-server']
    };
    config.output.filename = '[name].js';
    config.devtool = 'source-map';
    break;

  default:
    console.warn('Unknown or Undefined Node Environment. Please refer to package.json for available build commands.');
}

module.exports = config;

Output

/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/lib/transformations/removeDeprecatedPlugins/removeDeprecatedPlugins.js:15
                        if (path.parent.value.elements.length === 1) {
                                                      ^

TypeError: Cannot read property 'length' of undefined
    at NodePath.findPluginsByName.forEach.path (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/lib/transformations/removeDeprecatedPlugins/removeDeprecatedPlugins.js:15:34)
    at __paths.forEach (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/node_modules/jscodeshift/dist/Collection.js:76:36)
    at Array.forEach (native)
    at Collection.forEach (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/node_modules/jscodeshift/dist/Collection.js:75:18)
    at module.exports (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/lib/transformations/removeDeprecatedPlugins/removeDeprecatedPlugins.js:12:4)
    at transforms.forEach.f (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/lib/transformations/index.js:40:26)
    at Array.forEach (native)
    at transform (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/lib/transformations/index.js:40:13)
    at module.exports (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/lib/migrate.js:9:23)
    at Object.<anonymous> (/mutualofomaha.com/workbench/mutualofomaha/webpack-cli/bin/webpack.js:171:30)