Cant'enable extension

[ashik1729]

i just try to enable extesion fron spinner . but it can't work for me

$dataProvider, 'itemOptions' => ['class' => 'item'], 'itemView' => '_item', 'pager' => ['class' => \kop\y2sp\ScrollPager::className(), 'spinnerTemplate' => '

', 'triggerText' => 'Load More Data', 'noneLeftText' => 'No more result to display', 'eventOnScroll' => true, 'triggerOffset' => 6, 'eventOnRendered' => 'function() {loadPost();}', // 'triggerTemplate' => '{text}', 'enabledExtensions' => [ 'EXTENSION_TRIGGER'=> true, 'EXTENSION_HISTORY' => false, 'EXTENSION_PAGING'=>true, 'EXTENSION_SPINNER'=>true, ], ], ]); ?>

i get the error