after adding button on cart page have the error if i click on checkout page

Invalid method Mage_Core_Block_Template::isPopup(Array (
with trace :

Fix the block type in your layout definition. It looks like you are doing a block type="core/template" ... when really, the block type should the block class that contains this isPopup function.

  • thanks for your quick reply can you guide me littlebit more that layout defination of theme or amazonpayment or checkoutpage ? Nov 3 '16 at 14:07
  • Apparently, it's an issue that has been reported: github.com/amzn/amazon-payments-magento-plugin/issues/274. Just open up the template file app/design/frontend/base/default/template/amazon_payments/button.phtml and replace "<?php print $this->isPopup(); ?>" by "false" Nov 3 '16 at 14:38

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