LDAP authentication Error

[Maho]

When entering the LDAP Autentication string I receive the following error in the Log

[2016-08-08 14:41:47] Espo.ERROR: Display Error: 0x7002: LDAP extension not loaded, Code: 28674 URL: /espocrm/api/v1/Settings [] []
[2016-08-08 14:41:47] Espo.ERROR: Uncaught Exception Slim\Exception\Stop: "" at C:\xampp\htdocs\EspoCRM\vendor\slim\slim\Slim\Slim.php line 1013 {"exception":"[object] (Slim\\Exception\\Stop(code: 0):  at C:\\xampp\\htdocs\\EspoCRM\\vendor\\slim\\slim\\Slim\\Slim.php:1013)"} [] 

[tarasm]

Please enable php_ldap extension in your PHP.

[Frank]

I have the same problem after moving to another server, but i chek php_ldap extension is turn "on"

[tarasm]

It seems that your PHP installation is missing the LDAP extension. Have a look at your phpinfo() and you will notice that there is no "ldap" section available. Therefore the basic functions for LDAP connections are missing.

[Frank]

yes you are right, but I have a question:

Why does this error appears? I use the authentication method Espo