Install fails
Version 5.60.
Steps to reproduce
Downloaded compressed file to ext directory and unpacked. Selected install from CiviCRM Extensions. Install failed with following error message
$backTrace = #0 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Error.php(381): CRM_Core_Error::backtrace("backTrace", TRUE)
#1 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Controller.php(833): CRM_Core_Error::fatal("We can't load the requested web page. This page requires cookies to be enable...")
#2 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Controller.php(828): CRM_Core_Controller->invalidKeyCommon()
#3 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Controller.php(312): CRM_Core_Controller->invalidKey()
#4 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Controller.php(204): CRM_Core_Controller->key("CRM_Admin_Form_MessageTemplates", TRUE, FALSE)
#5 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Controller/Simple.php(66): CRM_Core_Controller->__construct("Message Templates", TRUE, NULL, "CRM_Admin_Form_MessageTemplates", TRUE, FALSE)
#6 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Utils/Wrapper.php(83): CRM_Core_Controller_Simple->__construct("CRM_Admin_Form_MessageTemplates", "Message Templates", NULL, FALSE, FALSE, FALSE, FALSE)
#7 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Invoke.php(282): CRM_Utils_Wrapper->run("CRM_Admin_Form_MessageTemplates", "Message Templates", (Array:0))
#8 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Invoke.php(84): CRM_Core_Invoke::runItem((Array:14))
#9 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/CRM/Core/Invoke.php(52): CRM_Core_Invoke::_invoke((Array:4))
#10 /home/webdevelopmentsc/public_html/sites/all/modules/civicrm/drupal/civicrm.module(445): CRM_Core_Invoke::invoke((Array:4))
#11 /home/webdevelopmentsc/public_html/includes/menu.inc(527): civicrm_invoke("admin", "messageTemplates", "add")
#12 /home/webdevelopmentsc/public_html/index.php(21): menu_execute_active_handler()
#13 {main}