Oracle VM

Linux Mint 20.1 Ulyssa

LAMP through Mint

Backdrop v1.18.1

CiviCRM 5.35.1 for Backdrop

I go to http://localhost and get Backdrop just fine.

I go to http://localhost/modules/civicrm/install/index.php and get "Oops! Incorrect CiviCRM version ... can only be used for Drupal version of CiviCRM".

I downloaded CiviCRM 5.35.1 for Backdrop three times, extracted, placed folder into modules and get that same message.

Clearly it is installed correctly or I wouldn't be getting that message. Perhaps the Backdropcms version and the CiviCRM version are not compatible?

/module/civicrm/README.md says it is good for Drupal, Wordpress and Joomla. but /module/civicrm/install/index.php line 67 says acceptable are "drupal, wordpress, backdrop"

Any help would be appreciated. Thanks in advance.

John in Medford, Oregon

  • 1
    Hi John -- have you tried this one? civicrm.stackexchange.com/a/11716/26
    – Laryn
    Commented Mar 19, 2021 at 22:44
  • 2
    Key point: http://localhost/modules/civicrm/install/index.php?civicrm_install_type=backdrop
    – Laryn
    Commented Mar 19, 2021 at 22:51
  • I wound up editing var/www/html/modules/civicrm/install/index.php Line 76, which sets the install Else type $installtype = 'backdrop'; Thanks Laryn for the help.
    – OregonJohn
    Commented Mar 20, 2021 at 8:00

1 Answer 1


Giving credit to Laryn, but not sure how to do that other than this.

Key point: http://localhost/modules/civicrm/install/index.php?civicrm_install_type=backdrop – Laryn - CEDC.org 22 hours ago

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