I recently upgraded to El Capitan and it broke my Macports as well as some of the compilers I use, so I'm trying to upgrade Xcode from 6 to 7.
First, I tried the ordinary way; i.e. click the "upgrade" button in the App Store. However, clicking it greyed it out for about 10 sec, and then it ungreyed as if nothing happened. It didn't show the usual "installing, 45 min remaining" progress bar that the App Store usually showed.
Then I went into /Applications folder and manually deleted the Xcode app and then emptied the trash. In Finder, I had the "details" view set up, so I could see date modified, size etc. For the size field for the Xcode icon/entry, it actually had a progress bar that was about 5% filled for some reason. I wasn't sure what this meant, but I deleted Xcode anyone. I only realized after deleting Xcode that this icon was not my previous Xcode version 6, but it was the App Store actually trying to install Xcode 7. I was confused because, as I noted above, when I clicked the update button in App Store, it didn't show the progress bar, it just momentarily greyed and ungreyed.
However, I then restarted my computer, and now when I go to App Store, the Xcode update doesn't appear in my Updates "panel" at all. I searched for Xcode in the App Store, and there's a button that says "install". I click it and nothing happens. I also tried searching for Xcode on google, and the page simply tells me to go to App Store. I guess my other options are to install the Xcode 7.1 beta, or re-install a previous version, say Xcode 6 from an installation file, but I would prefer to install the current stable version (although from App Store reviews it seems like the current Xcode is none too popular).
Anyone know how I can do this now? It seems like the app store process for installing Xcode 7 is majorly majorly screwed up, at least for my particular machine.