Yii2-adminlte package includes default error view that located in @yiister/adminlte/views/error.php
.
Using
Just set parameter view
for error action in your web application.
Example
public function actions() { return [ "error" => [ "class" => \yii\web\ErrorAction::className(), "view" => "@yiister/adminlte/views/error", ], ]; }