What causes an error in the detailView kartik widget?

Question

Yii

Widget I use yii2-detail-view. But I have a problem with an error, what exactly is asking me for The attribute configuration requires the "attribute" element to determine the value and display label.
How would I also add value as in the examples
Here is what I wrote in the code

<?= DetailView::widget([
      'model' => $model,
      'mode' => 'view',
      'attributes' => [
        [
          'attribute' => 'srok',
          'format' => ['date','d.MM.Y'],
        ],
        [
          'attribute' => 'statusName',
          'label' => 'Этап',
        ],
        'columns' => [
          [
            'attribute' => 'oplata',
            'valueColOptions' => ['style' => 'width:30%']
          ],
          [
            'attribute' => 'fact_oplata',
            'valueColOptions' => ['style' => 'width:30%']
          ],
        ],
      ],
    ]) ?>

Answer 1

did not work with the widget, but apparently you placed the columns array in the wrong place, you need it like this:

<?= DetailView::widget([
    'model' => $model,
    'mode' => 'view',
    'attributes' => [
        [
            'attribute' => 'srok',
            'format' => ['date','d.MM.Y'],
        ],
        [
            'attribute' => 'statusName',
            'label' => 'Этап',
        ],
        [
            'attribute' => oplata,
            'columns' => [
                [
                    'attribute' => 'oplata',
                    'valueColOptions' => ['style' => 'width:30%']
                ],
                [
                    'attribute' => 'fact_oplata',
                    'valueColOptions' => ['style' => 'width:30%']
                ],
            ],
        ]
    ],
]) ?>

Answer 2

Attributes should contain all attributes, but you have oplata and fact_oplata which are not described.
Here is a quote from the docs:

attributes - array, the most important part of this widget configuration, this is a list of attributes to be displayed in the detail view. Each array element represents the specification for displaying one particular attribute. All these attribute settings from the yii\widgets\DetailView are supported.