无法识别Grails g：ifLoggedIn标记

Question

When the user successfully logs into the system i want to display the LOGOUT link. And if the user has not logged into the system i want to display LOGININ link.

It says that <g:ifLoggedIn> is not recognised. I am using grails 2.2.4

<li class="dropdown" id="menuLogin"><g:ifLoggedIn>
                        <a class="dropdown-toggle" href="#" data-toggle="dropdown"
                            id="navLogin">Login</a>
                    </g:ifLoggedIn> <g:ifNotLoggedIn>
                        <a class="dropdown-toggle" href="#" data-toggle="dropdown"
                            id="navLogin">LOGOUT</a>
                    </g:ifNotLoggedIn>

Answer 1

Use this tag if you use spring-security-core plugin

<sec:ifLoggedIn></sec:ifLoggedIn>

instead of

<g:ifLoggedIn></g:ifLoggedIn> // there is no such tag in g namespace