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I’m getting this message while adding a product to the cart. “* Item qty declaration error.“ any ideas how to fix that ? Thanks. error qty

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  • update your code for adding product to cart. Dec 24 '14 at 8:18
  • i use default code. i see error display in cart page(checkout/cart). Can you explain error, i don't know what happen with error, why it occur. Thanks
    – Init
    Dec 24 '14 at 8:34
  • update full error message... Dec 24 '14 at 8:40
  • i upload picture for error
    – Init
    Dec 24 '14 at 9:38
  • its looks like js error.not PHP..confirm it. Dec 24 '14 at 10:32
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This error happens during the function checkData on a quote item.

    try {
        $this->setQty($qty);
    } catch (Mage_Core_Exception $e){
        $this->setHasError(true);
        $this->setMessage($e->getMessage());
    } catch (Exception $e){
        $this->setHasError(true);
        $this->setMessage(Mage::helper('sales')->__('Item qty declaration error.'));
    }

It happens when a generic Exception is caught. I would suggest that you need to dig deeper into the exception to find out the problem. Make sure you have logging and developer mode set-up and you could even update the code to simply Mage::log($e->getMessage()) to see what is going on with the error. Another great tool for debugging this would be xdebug.

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