I recently tried to install XCode 3.2.6 together with iOS SDK on my Snow Leopard machine, after initial steps, the installation failed saying an unknown error occurred. I tried lots of solutions, but none of them worked, except this silly one: Change computer's date to: January, 1st, 2012
Very silly idea, but it solved my problem and XCode is currently being installed as I'm writing this post...
Very silly idea, but it solved my problem and XCode is currently being installed as I'm writing this post...