I have an app which is working fine but recently I tried it on an iOS 6 device and it doesn't work and it seems it's because of my old xcode version (4.2). I tried to download xcode 4.6 dmg file from apple developer section. I have downloaded it twice but the weird thing is after it completes the download the xcode dmg file which is 1.4GBs on size changes to a login.html which is only 8kbs in size! anyone had any experience with these kinds of files? My internet connection isn't so speedy and this is tough for me to download these files over and over again.
you can download from here https://developer.apple.com/downloads/ but you have to authenticate with developers account.
You must login before download.
来源：https://stackoverflow.com/questions/16615251/how-to-download-xcode-dmg-file