Login button in facebook sdk doesn't click

Issues/Bugs
1

hello, i am making a test on an iOS app that support login via facebook, google and tweeter, the username and password textfield works, but when i click on the login button to authenticate the button doesn’t click

2

what error are you getting, also can you post the xml of the app

3

i’m not getting an error, but the code in this case is without funcionality

6 
              </UIASecureTextField>
                <UIAButton name="Log In" label="Log In" value="" dom="[object Object]" enabled="true" valid="true" visible="true" hint="" path="/0/0/2/0/6" x="16" y="391" width="343" height="36">
                </UIAButton>