Add to Cart Not Working on Product Page

I have an issue with OC 2.0.1.1

When you are on a product page, and add to cart, the button shows loading... then goes back to Add to Cart, but does not add the product to the mini cart on the header.

The add to Cart works on the Category pages and the Home page, but not on the product page.

I tried removing the php.ini file as mentioned in previous topic, but this didn't work for me

Any ideas what could be causing this.... please

review the code of the product.tpl make sure this file exist
opencart-2.0.1.1\catalog\view\javascript\common.js

Thank you, but it has the script you mentioned

// Cart add remove functions
var cart = {
'add': function(product_id, quantity) {
$.ajax({
url: 'index.php?route=checkout/cart/add',
type: 'post',
data: 'product_id=' + product_id + '&quantity=' + (typeof(quantity) != 'undefined' ? quantity : 1),
dataType: 'json',
beforeSend: function() {
$('#cart > button').button('loading');
},
success: function(json) {
$('.alert, .text-danger').remove();

$('#cart > button').button('reset');

if (json['redirect']) {
location = json['redirect'];
}

if (json['success']) {
$('#content').parent().before('<div class="alert alert-success"><i class="fa fa-check-circle"></i> ' + json['success'] + '<button type="button" class="close" data-dismiss="alert">&times;</button></div>');

$('#cart-total').html(json['total']);

$('html, body').animate({ scrollTop: 0 }, 'slow');

$('#cart > ul').load('index.php?route=common/cart/info ul li');
}
}
});
},

<button type="button" onclick="cart.add(...)....
can you find above code in product.tpl?

In the catalog/view/theme/dragee/template/product/product.tpl file there is a missing part when sending the ajax query: should be Now it is working for me.
There is nothing to do with the onclick event.

Hello I have a problem and that is the shopping cart button on the product page does not work buy other
but buttons on the main page is true...
And when I do click on this button will only be displayed for a moment Loading But nothing happens Anyone
who can help me?
http://www.soghatenab.com/%D8%B3%D9%88% ... -birjand--
Thank you
ahmad.mohammadi.a@gmail.com

ahmadm wrote:Hello I have a problem and that is the shopping cart button on the product page does not work buy other
but buttons on the main page is true...
And when I do click on this button will only be displayed for a moment Loading But nothing happens Anyone
who can help me?
http://www.soghatenab.com/%D8%B3%D9%88% ... -birjand--
Thank you
ahmad.mohammadi.a@gmail.com

Is the problem fixed? I can add product to cart at the product page.

I also have problem with add to cart but on home page. That worked fine before. If someone know what need to do just say. Check this on home page www.nadohvatruke.rs

Oh , ok IP, thank you.

Tell me what need to do to fix?

I installed revo theme on opencart 3.0.2.0 and after that add to cart button not working on product page but works fine on home page and other pages just not on product page

This problem is still not solved in April 2020 .
on product page add to cart button just blinks, doesnot add product to cart

the solution here viewtopic.php?t=211169
is also not sufficient

admin please address this issue, its very crucial, please

Thanks Allah , i just found the solution as below

my path was ...........\catalog\view\themeMobile

today i changed it back to like original one ...\catalog\view\theme