simplenetworkstreams sample code error on run.

[anycase]

Hi, I've just gotten into xcode a week ago now, and can create small projects like hello world, but I've been wanting to learn about opening sockets and sending / receiving data from them. I downloaded the sample code for simplenetworkstreams from apple's dev site here Loading…

however when trying to run it i'm getting some errors. 1st one is upon opening it it says i don't have the bask sdk needed to run it (ios4) it gives me several warnings stating the base sdk must be upgraded to ios5, that it wants to remove the obsolete setting PREBINDING, and to upgrade it to the latest project format xcode 3.2

if i run it before making those suggested changes it crashes out of the ios5 simulator, and after making the changes it still crashes out when trying to run it. I also tried the same with the witap and simpleURL code examples and i'm getting the same errors, none of them are able to run. I'm lost as to what seems to be going on, can anyone get these to run? are there any updated versions floating around that work? Am i not doing something correctly? any help is greatly appreciated, thanks.