login problem in deployed

hello ..i am new with cakephp ... i made a web aplication and deployed to hostgator  and  the send me this error

Missing Method in UsersController

Error: The action index.html is not defined in controller UsersController

upload a older version  from  same proyect without login part and works fine..

i dont  know where are my mistake .. i am supposed  in login part

this sample login page  where i copied the code

http://www.endyourif.com/cakephp-2-x-login-system/

http://bk-g-21.blogspot.mx/2011/05/tutorial-1-usar-el-componente-auth-en.html

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