I have a Drupal 7 website and would like to add a poll to it. I have enabled a Poll module and opened Add material -> Poll page. When I pressed "add variant" button I got an error stating that
AJAX HTTP error.
HTTP response code: 200
Debugging information follows.
Path: /system/ajax
Text status: OK
ResponseText:
Fatal error: Call to undefined function node_form_validate() in /*/public_html/includes/form.inc on line 1390
How can it be fixed? I have rather small experience with Drupal and hardly imagine where to start.
Hmmm... Seems I have fixed it myself by adding
require_once(DRUPAL_ROOT . "/modules/node/node.pages.inc");
to /modules/poll/poll.module as described here . It turned out this Drupal is not as a terrible CMS.
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