Seeing your tagline @zoltanleo you are already using trunk so it would probably be more efficient to ask about revision number. Then again, TList is a standard class that exists... well... since the beginning of time. I suspect you have other errors listed before that error or perhaps have a faulty installation.
It is difficult for me to assume other reasons. At present I have trunk fpc and IDE versions also (see my profile). I tried to establish by subj and a traditional way, and by means of Onlinepackagemanager.
I will establish the last audits of the compiler and Lazarus and I will try again.
I have only one request, specify number of the minimum audit fpc after which profiler can be established with guarantee
@zoltanleo: Maybe you should update FPC and Lazarus to latest revisions and try again.
Thanks for council. I and will arrive