Getting unknown property: yii\web\Application::ldapAuth

Yii 2.0 General Discussions
1

I have facing below error after install new extension

Unknown Property – yii\base\UnknownPropertyException
Getting unknown property: yii\web\Application::ldapAuth

while i have put code in web.php

‘ldapAuth’ => [
‘class’ => ‘\stmswitcher\Yii2LdapAuth\LdapAuth’,
‘host’ => ‘your-ldap-hostname’,
‘baseDn’ => ‘dc=work,dc=group’,
‘searchUserName’ => ‘’,
‘searchUserPassword’ => ‘’,

    // optional parameters and their default values
    'ldapVersion' => 3,             // LDAP version
    'protocol' => 'ldaps://',       // Protocol to use           
    'followReferrals' => false,     // If connector should follow referrals
    'port' => 636,                  // Port to connect to
    'loginAttribute' => 'uid',      // Identifying user attribute to look up for
    'ldapObjectClass' => 'person',  // Class of user objects to look up for
    'timeout' => 10,                // Operation timeout, seconds
    'connectTimeout' => 5,          // Connect timeout, seconds
],

please share solution regarding that.