I am trying to export products using System -> Import/Export -> Export After selecting Export Settings and click on Continue, I am getting No valid data sent.

Looking in the system.log It is showing:

2016-12-21T12:28:50+00:00 EMERG (0): Redis configuration does not exist, falling back to MySQL handler.

2016-12-21T12:28:50+00:00 ERR (3): Notice: Undefined offset: 4271 in /var/www/clients/client5618/web7022/web/app/code/core/Mage/ImportExport/Model/Export/Entity/Product.php on line 875

There are 7000+ products. Please let me know what is wrong with this and how do I fix it?

Thank You :)

2 Answers 2


I think the error comes directly from the method exportAction() from Mage_ImportExport_Adminhtml_ExportController class:

public function exportAction()
    if ($this->getRequest()->getPost(Mage_ImportExport_Model_Export::FILTER_ELEMENT_GROUP)) {
        try {
            /** @var $model Mage_ImportExport_Model_Export */
            $model = Mage::getModel('importexport/export');

            return $this->_prepareDownloadResponse(
        } catch (Mage_Core_Exception $e) {
        } catch (Exception $e) {
            $this->_getSession()->addError($this->__('No valid data sent'));
    } else {
        $this->_getSession()->addError($this->__('No valid data sent'));
    return $this->_redirect('*/*/index');

So, check the var/log/exception.log, maybe you can see more information about the error.

  • Thank you @vishal_gelani ! I will check this and let you know. Mar 7, 2017 at 9:48

I was experiencing the same issue to this, however this above solution was not the cause.

I noticed in chrome debugger the following 500 error:


I installed a vanilla install of magento 2.1.8 and then reloaded the database.

From this I then took a look at product attributes. I know this was working recently, so some data change has made this come about.

So in summary, I removed the most recent product attributes I had created, and this resolved the issue.

One of the attributes added was causing the product filter screen to break down. Hence the blank page.

Anyway, hope this is useful


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