title: Promise Error: Objects are not valid as a React child
body: <p>I am trying to set the json to a state using user agent, I get the error:</p>
  
  <blockquote>
    <p>Uncaught Invariant Violation: Objects are not valid as a React child (found: object with keys {...}). If you meant to render a collection of children, use an array instead or wrap the object using createFragment(object) from the React add-ons.</p>
  </blockquote>
  
  method to set state:
  
  <pre><code> getInitialState: function(){
      return {
          arrayFromJson: []
      }
  },
  
  loadAssessmentContacts: function() {
      var callback = function(data) {
          this.setState({arrayFromJson: data.schools})
      }.bind(this);
  
      service.getSchools(callback);
  },
  
  componentWillMount: function(){
      this.loadAssessmentContacts();
  },
  
  onTableUpdate: function(data){
  
      console.log(data);
  
  },
  
  render: function() {
  
      return (
          &lt;span&gt;{this.state.arrayFromJson}&lt;/span&gt;
      );
  }
  </code></pre>
  
  service
  
  <pre><code>getSchools : function (callback) {
          var url = 'file.json';
         request
              .get(url)
              .set('Accept', 'application/json')
              .end(function (err, res) {
                  if (res &amp;&amp; res.ok) {
                      var data = res.body;
                      callback(data);
  
                  } else {
                      console.warn('Failed to load.');
                  }
              });
      }
  </code></pre>
  
  Json
  
  <pre><code>{
  "schools": [
  {
    "id": 4281,
    "name": "t",
    "dfe": "t",
    "la": 227,
    "telephone": "t",
    "address": "t",
    "address2": "t",
    "address3": "t",
    "postCode": "t",
    "county": "t",
    "ofsted": "t",
    "students": 2,
    "activeStudents": 2,
    "inActiveStudents": 0,
    "lastUpdatedInDays": 0,
    "deInstalled": false,
    "inLa": false,
    "status": "unnassigned",
    "authCode": "t",
    "studentsActivity": 0
  },......
  ]}
  </code></pre>