Product.OptionsPrice is not a constructor magento 1.9.3
This issue i have faced and challenging to sort out at that time. i am giving you brief how to solve this issue.

i have found that  product_options.js file not added into my custom theme which cause the issue after upgrade my magento.

add js file in either local.xml or catalog.xml and add under the <catalog_product_view> tag or page handle you're having the same issue.

<action method="addJs"><script>varien/product_options.js</script></action>

Thaat's it...!!!

Experienced Magento Certified Developer with a demonstrated history of working in the information technology and services industry. Skilled in SQL, PHP, XAMPP, jQuery, and Microsoft Office. Strong engineering professional with a Master of Computer Applications


  1. This is an awesome post. Really very informative and creative contents. This concept is a good way to enhance knowledge. I like it and help me to development very well. Thank you for this brief explanation and very nice information. Well, got good knowledge.
    WordPress website development Chennai


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