React native - connection has no connection handler error meaning? : <p>I created a new react project and when I run it on iOS from xcode, the console gives me this:</p>

<pre><code>2017-05-19 23:25:34.119 [info][tid:main][RCTBatchedBridge.m:77] Initializing &lt;RCTBatchedBridge: 0x6100001a6c80&gt; (parent: &lt;RCTBridge: 0x6100000c46e0&gt;, executor: RCTJSCExecutor)
2017-05-19 23:25:51.287 [info][tid:main][RCTRootView.m:295] Running application test ({
    initialProps =     {
    };
    rootTag = 1;
})
2017-05-19 23:25:51.289 [info][tid:com.facebook.react.JavaScript] Running application "test" with appParams: {"rootTag":1,"initialProps":{}}. __DEV__ === true, development-level warning are ON, performance optimizations are OFF
2017-05-19 23:25:51.299771-0400 test[21948:1121429] [] nw_connection_get_connected_socket_block_invoke 3 Connection has no connected handler
2017-05-19 23:25:53.335282-0400 test[21948:1121426] [] nw_connection_get_connected_socket_block_invoke 4 Connection has no connected handler
2017-05-19 23:25:55.349190-0400 test[21948:1120112] [] nw_connection_get_connected_socket_block_invoke 5 Connection has no connected handler
</code></pre>

<p>What do <code>2017-05-19 23:25:51.299771-0400 test[21948:1121429] [] nw_connection_get_connected_socket_block_invoke 3 Connection has no connected handler</code> these lines mean and how to I resolve the issue?</p>

<p>I first noticed this when I tried to use fetch in my application and found it did not work. I found these messages in the console and later discovered these messages are happening with all my applications so I assume that means it is a config issue on my part? </p>

<p>I created a new test program to test what was causing this and found it happens on a brand new project. Below is my code is that generated the log output above:</p>

<pre><code>/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View
} from 'react-native';

export default class test extends Component {
  render() {
    return (
      &lt;View style={styles.container}&gt;
        &lt;Text style={styles.welcome}&gt;
          Welcome to React Native!
        &lt;/Text&gt;
        &lt;Text style={styles.instructions}&gt;
          To get started, edit index.ios.js
        &lt;/Text&gt;
        &lt;Text style={styles.instructions}&gt;
          Press Cmd+R to reload,{'\n'}
          Cmd+D or shake for dev menu
        &lt;/Text&gt;
      &lt;/View&gt;
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});

AppRegistry.registerComponent('test', () =&gt; test);
</code></pre>
