you are right, that worked.but I did not understand,if you check the Creating Login Portlet you will find that it extends portlet not CPortlet but in Creating User Menu Portlet it extends the CPortlet not Portlet.So what is the difference?
Right. I thought there was a bug in the docs (could happen) but then I noticed that the docs are for Yii v1.0. There’s typically two strands of documentation - for v1.0 and for v1.1. You need to read (probably) only the docs for v1.1.