I have a problem of export and import in my site,
error are :
system - import/export - export :
https://i.stack.imgur.com/C5y2X.png
system - import/export - dataflow profiles - export all products :
I have a problem of export and import in my site,
error are :
system - import/export - export :
https://i.stack.imgur.com/C5y2X.png
system - import/export - dataflow profiles - export all products :
I do not know if it's your case, but the "No valid data sent" Error, I have seen it when there is a problem in the catalog_category_entity table, specifically if for any reason, any category has in parent_id the id of a category that no longer exists.
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');
$model->setData($this->getRequest()->getParams());
return $this->_prepareDownloadResponse(
$model->getFileName(),
$model->export(),
$model->getContentType()
);
} catch (Mage_Core_Exception $e) {
$this->_getSession()->addError($e->getMessage());
} catch (Exception $e) {
Mage::logException($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.