Bug #52819 cannot open Admin tab of Workbench

Description:
content of the "output window":

x32 on x32Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 5.2 OSS/modules\wb_admin_grt.py", line 240, in tmpAdministratorShortcut
    tab = do_open_administrator(server)
  File "C:\Program Files\MySQL\MySQL Workbench 5.2 OSS/modules\wb_admin_grt.py", line 125, in do_open_administrator
    adminTab = AdministratorTab(server_instance)
  File "C:\Program Files\MySQL\MySQL Workbench 5.2 OSS/modules\wb_admin_grt.py", line 95, in __init__
    self.configuration = wb_admin_configuration.WbAdminConfiguration(server_instance_settings, self.ctrl_be, self.monitor)
  File "C:\Program Files\MySQL\MySQL Workbench 5.2 OSS/modules\wb_admin_configuration.py", line 60, in __init__
    sys_config_path = self.ctrl_be.get_config_file_path()
  File "C:\Program Files\MySQL\MySQL Workbench 5.2 OSS/modules\wb_admin_control_be.py", line 667, in get_config_file_path
    return self.expand_path_variables(self.settings.serverInfo['sys.config.path'].strip(" \r\t\n\b"))
AttributeError: 'NoneType' object has no attribute 'strip'

content of the "Copy bug info to clipboard" :

Exception = System.Runtime.InteropServices.SEHException
Message = External component has thrown an exception.
FullText = System.Runtime.InteropServices.SEHException: External component has thrown an exception.
   at MySQL.Forms.DrawBoxImpl.drawbox_mouse_click(Object sender, MouseEventArgs e)
   at System.Windows.Forms.Control.OnMouseClick(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

How to repeat:
On the home tab of the workbench, click the "server administration" link. Then, click on the local server. Enter root password in pop-up. Then, a MySQL Workbench unexpected error window pops up, asking to report the bug. MySQL version is 5.1.45 community.

Thank you for the bug report. Could you please try 5.2.18 version. Thanks in advance.

Please, check with a newer version, 5.2.18, and inform about the results.

I updated to 5.2.18 and the admin now works. Thanks !

Thank you for the feedback.