Is anyone else seeing a new DataTables warning in 4.7.18? We get the following warning on the dedupe page when finding duplicate contacts:

[Server Name] says:

DataTables warning: table id=dupePairs - Cannot reinitialise DataTable. For more information about this error, please see http://datatables.net/tn/3**

(Joomla version 3.6.5, php 5.6.30, mysql 5.6.36) Thanks.

  • I am also getting this on 4.7.18 under Drupal 7.54.
    – Eric H
    May 11, 2017 at 16:59
  • Me too - have you found a solution? 😬
    – Caroline B
    May 12, 2017 at 7:02
  • No, we're still getting the warning.
    – Jern
    May 12, 2017 at 19:16
  • Just looking at this problem. Does anyone know why there would be three separate installs of DataTables on my CiviCRM? I have: - civicrm/bower_components/datatables - civicrm/packages/jquery/plugins/DataTables - civicrm/packages/jquery/plugins/DataTables-1.7.6
    – Jern
    May 14, 2017 at 8:21
  • I am seeing this error on 4.7.18 under WordPress 4.7.5. Not urgent for now, but would like to be able to dedup contacts...
    – dvhirst
    Jun 5, 2017 at 20:41

1 Answer 1


There's a fix for this issue in https://github.com/civicrm/civicrm-core/pull/10503. Hope this will be included in 4.7.21.

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