Title: Error during setup Last modified: August 21, 2016 --- # Error during setup * Resolved [Wayne_12345](https://wordpress.org/support/users/wayne_12345/) * (@wayne_12345) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-during-setup/) * Hi there, I got the following error. I appreciate if you can help. My CAS Maestro Settings are CAS version = 2.0 Server hostname = auth-test.xyz.edu Server port = 443 Server path = /cas/login No mail creation (selected) Register all users?( selected) E-mail address * Thanks, Wayne * ————–Error———————- Warning: DOMDocument::loadXML() [domdocument.loadxml]: Empty string supplied as input in /nas/wp/www/staging/graddashboard/wp-content/plugins/ cas-maestro/phpCAS/CAS/Client.php on line 2778 CAS Authentication failed! * You were not authenticated. * You may submit your request again by clicking here. * If the problem persists, you may contact the administrator of this site. phpCAS 1.3.2 using server [https://auth-test.xyz.edu/cas/login/](https://auth-test.xyz.edu/cas/login/)( CAS 2.0) * Fatal error: Uncaught exception ‘CAS_AuthenticationException’ in /nas/wp/www/ staging/graddashboard/wp-content/plugins/cas-maestro/phpCAS/CAS/Client.php:2780 Stack trace: #0 /nas/wp/www/staging/graddashboard/wp-content/plugins/cas-maestro/ phpCAS/CAS/Client.php(1224): CAS_Client->validateCAS20(‘[https://auth-te…’](https://auth-te…’);,”, NULL) #1 /nas/wp/www/staging/graddashboard/wp-content/plugins/cas-maestro/phpCAS/ CAS/Client.php(1083): CAS_Client->isAuthenticated() #2 /nas/wp/www/staging/graddashboard/ wp-content/plugins/cas-maestro/phpCAS/CAS.php(1101): CAS_Client->forceAuthentication()# 3 /nas/wp/www/staging/graddashboard/wp-content/plugins/cas-maestro/cas-maestro. php(203): phpCAS::forceAuthentication() #4 [internal function]: CAS_Maestro-> validate_login(Object(WP_Error), ”, ”) #5 /nas/wp/www/staging/graddashboard/wp- includes/plugin.php(192): call_user_func_array(Array, Array) #6 /nas/wp/www/staging/ graddashboard/wp-includes/pluggable.php(537): apply_filters(‘authenticate’, NULL,”,”)# 7 /nas/wp/www/staging/graddashboard/wp-includes/ in /nas/wp/www/staging/graddashboard/ wp-content/plugins/cas-maestro/phpCAS/CAS/Client.php on line 2780 * [https://wordpress.org/plugins/cas-maestro/](https://wordpress.org/plugins/cas-maestro/) Viewing 3 replies - 1 through 3 (of 3 total) * Plugin Author [Henrique Mouta](https://wordpress.org/support/users/vaurdan/) * (@vaurdan) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-during-setup/#post-4850552) * Hello. * What is your PHP version and your server OS? * It look likes to be a backwards compatibility problem with phpCAS 1.3.2 and CAS Server versions lesse than, but not including, 3.5.2. ( check bug report at [https://github.com/Jasig/phpCAS/issues/92](https://github.com/Jasig/phpCAS/issues/92)) * Please let me know what CAS Server version you are using so I can try to get a fix for this problem. * The solution may be including the option to choose a older version of phpCAS library, but there are some security issues with that approach… What I would recomend is to update your CAS Server. * Regards, Henrique * Thread Starter [Wayne_12345](https://wordpress.org/support/users/wayne_12345/) * (@wayne_12345) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-during-setup/#post-4850625) * Hi Henrique, PHP Version is 5.3.2-1ubuntu4.18. More setting can be found at [http://phpinfo.wpengine.com/info.php](http://phpinfo.wpengine.com/info.php) Thanks a lot, Wayne * Plugin Author [Henrique Mouta](https://wordpress.org/support/users/vaurdan/) * (@vaurdan) * [12 years, 1 month ago](https://wordpress.org/support/topic/error-during-setup/#post-4850648) * Hello. The problem looks like that your CAS server is returning a invalid response… Please, activate the debug mode with the following steps: 1. Edit your wp-config.php and add the following line: `define('CAS_MAESTRO_DEBUG_ON', true);` 2. This will generate a log in yoursite.com/wp-content/plugins/cas-maestro/debug. log when you try to login using CAS. 3. Please try to reproduce the bug and send me the log (link or a saved version) to [henrique@mowta.pt](https://wordpress.org/support/topic/error-during-setup/henrique@mowta.pt?output_format=md) * Thanks. Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘Error during setup’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/cas-maestro_009fe3.svg) * [CAS Maestro](https://wordpress.org/plugins/cas-maestro/) * [Frequently Asked Questions](https://wordpress.org/plugins/cas-maestro/#faq) * [Support Threads](https://wordpress.org/support/plugin/cas-maestro/) * [Active Topics](https://wordpress.org/support/plugin/cas-maestro/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/cas-maestro/unresolved/) * [Reviews](https://wordpress.org/support/plugin/cas-maestro/reviews/) * 3 replies * 2 participants * Last reply from: [Henrique Mouta](https://wordpress.org/support/users/vaurdan/) * Last activity: [12 years, 1 month ago](https://wordpress.org/support/topic/error-during-setup/#post-4850648) * Status: resolved