Xcode 3.2.6 and ios sdk installation failed

I have this same issue, when I went and checked all messages in the console I fould I had the error as described in this other post as well, I'm pursuing it now:

https://discussions.apple.com/thread/2616364?start=0&tstart=0

Really weird... Also solved my problem... Seems like a silly fix but I guess whatever works...

Thank you!!!! Been looking for this for days!

uh... also worked for me. who will ever understand computers, :S lol

thanks! been great help.

Worked for me, as well -- after spending two days on two Macbooks trying to resolve it. THANK YOU!

i don't know why, but this also worked for me. Thanks!

Yup, that works!

some type of CSSMERR_TP_CERT_EXPIRE error

Thank you Leon...don't know how you found this solution, but it worked for me as well.

Heyyy, this is weird. I had frustration about it but changing the time really SOLVED it. Go to settings -> Date and Time and change it to "01/01/2012". Apple is weird?! 🙂

Ok what the balls this worked. Why did this work? I need answers!

You don't know? Apple wrote special if statement:

if (date != 2012/1/1) then fail 😀

Worked for me as well in 21/05/2013

OS: 10.6.3

Xcode 3.2.4 ios 4.1