I'm fresher with alfresco Community 5.0.c, i'm working on a project where I need to change some permissions of user's role defined in alfresco, I need also to add some specific roles that I need to work with in my project.
Thanks for ur reply, i've solved this problem, now my prob is that when i create a new role this exception appears in existing sites(there is no prob with new sites created after a creation of new role) : " An authority was not found for GROUP_Site…." , i've tried to create a missing groups and it works, now i'm asking if there is another way to solve it.