Заменил redux-simple-router на react-router-redux (пакет переименовался). Добавил пакетов в vendor.js

src/components/auth/Login.jsx

@@ -1,6 +1,6 @@
 import React, { Component } from 'react';
 import { connect } from 'react-redux';
-import { routeActions } from 'redux-simple-router';
+import { routeActions } from 'react-router-redux';
 
 import { FormattedMessage as Message } from 'react-intl';
 import Helmet from 'react-helmet';

src/index.js

@@ -13,7 +13,7 @@ import { Provider as ReduxProvider } from 'react-redux';
 import thunk from 'redux-thunk';
 
 import { Router, browserHistory } from 'react-router';
-import { syncHistory, routeReducer } from 'redux-simple-router';
+import { syncHistory, routeReducer } from 'react-router-redux';
 
 import { IntlProvider } from 'react-intl';