"xmlrpc error: Expected to have 1 children, found 0"

APPLIES TO:

• Parallels Plesk 11.0 for Linux
• Parallels Plesk 11.5 for Linux
• Parallels Plesk 11.0 for Windows
• Parallels Plesk 11.5 for Windows
• Parallels Plesk 10.4 for Windows
• Parallels Plesk 10.3 for Windows

Symptoms

Parallels Plesk shows the following error:

xmlrpc error: Expected <param> to have 1 children, found 0
---------------------- Debug Info -------------------------------
0: common_func.php3:4675
        of_get_all_keys()
1: common_func.php3:4675
        pkey_fetch_key_list()
2: KeyInfoForm.php:171
        KeyInfoForm->get_bye_online_url(string 'new', string '')
3: KeyInfoForm.php:77
        KeyInfoForm->assign()
4: key_info.php:43
        require(string 'C:\Program Files\Parallels\Plesk\admin\htdocs\server\key_info.php')
5: plesk.php:66

Cause

The file %plesk_dir%\admin\repository\registry.xml is empty.

Resolution

1. Remove the file %plesk_dir%\admin\repository\registry.xml.
2. Click the OK button on the error screen or log into the Plesk Control Panel again.
3. Click the Retrieve Keys button on the License Management screen to re-apply the license.