Odoo error AccessDenied: Access denied. Solution

Traceback (most recent call last ):
File "D: \ Odoo \ source \ openerp \ http. py", line 537, in _ handle_exception
Return super (JsonRequest, self). _ handle_exception (exception)
File "D: \ Odoo \ source \ openerp \ http. py", line 574, in dispatch
Result = self. _ call_function (** self. params)
File "D: \ Odoo \ source \ openerp \ http. py", line 311, in _ call_function
Return self. endpoint (* args, ** kwargs)
File "D: \ Odoo \ source \ openerp \ http. py", line 803, in _ call __
Return self. method (* args, ** kw)
File "D: \ Odoo \ source \ openerp \ http. py", line 403, in response_wrap
Response = f (* args, ** kw)
File "D: \ Odoo \ source \ addons \ web \ controllers \ main. py", line 703, in create
Params ['create _ admin_pwd '])
File "D: \ Odoo \ source \ openerp \ http. py", line 879, in proxy_method
Result = dispatch_rpc (self. service_name, method, args)
File "D: \ Odoo \ source \ openerp \ http. py", line 115, in dispatch_rpc
Result = dispatch (method, params)
File "D: \ Odoo \ source \ openerp \ service \ db. py", line 65, in dispatch
Security. check_super (passwd)
File "D: \ Odoo \ source \ openerp \ service \ security. py", line 32, in check_super
Raise openerp. exceptions. AccessDenied ()
AccessDenied: Access denied.
The reason is that the default password of Master password: is changed. The initial password is admin.