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  • I got an error after installing cart2Quote free
  • (Magento\Framework\Config\Dom\ValidationException): Element 'referenceBlock', attribute 'class': The attribute 'class' is not allowed.
  • i am using magento 2.2.7 Please help! enter image description here
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There are only two allowed attributes for reference blocks.

remove

display

Search for referenceBlock in your cart2quote module and remove the class attribute from referenceBlock element.

Flush your Magento cache php bin/magento c:f and check.

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  • thank your answer! i has remove all class attribute from referenceBlock, but it not working for me. – Uông Đức Tùng Sep 16 '20 at 6:23
  • make sure to flush all cache and then check. – Rizwan Khan Sep 16 '20 at 6:24
  • yes. i has flush all cache but it not working. – Uông Đức Tùng Sep 16 '20 at 6:27
  • this is my mistake. I mistook referenceBlock vs referenceContainer – Uông Đức Tùng Sep 16 '20 at 6:42
  • glad it helps you. please accept and upvote the answer if helpful. – Rizwan Khan Sep 16 '20 at 6:45

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