How to solve problem with kartik-v/yii2-export?

Question

Yii

There was a problem with kartik-v/yii2-export.
Without

'modules' => [
    'gridview' => [
        'class' => '\kartik\grid\Module',
    ],
 ],

An error appears

indicating

'modules' => [
    'gridview' => [
        'class' => '\kartik\grid\Module',
    ],
 ],

Another error occurs

What to do?
view code

<?php echo ExportMenu::widget([
    'dataProvider' => $dataProvider,
    //'columns' => $gridColumns,
    'dropdownOptions' => [
        'label' => 'Export All',
        'class' => 'btn btn-secondary'
    ]
]) . "<hr>\n".
GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
      ['class' => 'kartik\grid\SerialColumn'],
      'Invoice',
      'Date'
  ],
]); ?>

Answer 1

I think the problem is either in the nesting in the config or in the Russian symbol or something like that
Check the config more carefully. rewrite the module declaration. I'm sure it's not the same as you gave in the question. Otherwise there would be no error.