title: Flutter - How to list out forEach() value in ListView builder?
body: <p>Hi I am trying to list data from JSON to Listview Builder . But Flutter is giving me this error: <code>Column's children must not contain any null values, but a null value was found at index 0</code></p>
  
  <p>I tried to map each one like this inside the listview</p>
  
  <pre><code>alo[Index]['rewards'].forEach((k, v) {
                        Text(v['name']);
                      }),
  </code></pre>
  
  <p>Here is my full code:</p>
  
  <pre><code>            shrinkWrap: true,
              itemCount: alo.length,
              itemBuilder: (BuildContext ctxt, int Index) {
                return Card(
                    child: Padding(
                  padding: const EdgeInsets.all(15.0),
                  child: Column(
                    children: &lt;Widget&gt;[
                      alo[Index]['rewards'].forEach((k, v) {
                        Text(v['name']);
                      }),
  
  
                    ],
                  ),
                ));
              });
  </code></pre>
  
  <p>Is there any solution to this? Thank you!</p>