Evaluation of this constant expression throws an exception.dart(const_eval_throws_exception)

10264

Followowing is my FLutter code

child: Card(
    child: Column(
      //mainAxisSize: MainAxisSize.max,
      children: <Widget>[
        const ListTile(
          //leading: Icon(Icons.album),
          title: Text(post['title']),
          subtitle: Text(
              "by ${post['user']['name']}"),
        ),
      ],
    ),
  ),

This is throwing the following error

dynamic post
Evaluation of this constant expression throws an exception.dart(const_eval_throws_exception)
Arguments of a constant creation must be constant expressions.
Try making the argument a valid constant, or use 'new' to call the constructor.dartconst_with_non_constant_argument
Peek Problem (⌥F8)
No quick fixes available

1 Answer

4 years ago by

remove the const before the ListTile. Change your code to the following

child: Card(
    child: Column(
      //mainAxisSize: MainAxisSize.max,
      children: <Widget>[
        ListTile(
          //leading: Icon(Icons.album),
          title: Text(post['title']),
          subtitle: Text(
              "by ${post['user']['name']}."),
        ),
      ],
    ),
  ),
4 years ago by Karthik Divi