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When I browse the Mac App Store, the buy button of the Xcode app is shown as "installed" so that I can't buy it. But I can't find it in my Applications folder either.

How can I locate the app? Or how can I change the "installed" button to "buy" button?

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migrated from stackoverflow.com Mar 6 '11 at 16:38

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By the tags, I guess the application in question is XCode (4?). It should be installed under /Developer, but I still have 3.2.5 there, personally, despite having bought version 4 from the App Store. –  Tomi Junnila Mar 10 '11 at 7:29

3 Answers 3

up vote 3 down vote accepted

You could try inspecting the output of

$ pkgutil --pkgs

to see if any of the names look like the package that claims to be installed, then

$ pkgutil --pkg-info thatpackage

to see where it was installed. If it's not actually found there, you could try

$ sudo pkgutil --forget thatpackage

and see if the App Store will let you re-download; but at that point I'd probably contact App Store support first, as mucking with the package database might cause bigger problems (like, conceivably, forgetting that you ever bought the program — although I would hope Apple's programmers were smarter than that).

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Thank you! I followed your instructions and solved the problem. –  backspacer Mar 5 '11 at 15:55

FYI, I had a similar problem but eventually noticed (via spotlight search for 'xcode') that rather than installing the actual app, it had downloaded an app in /Applications called, "Install XCode" which was 4.58 GB.

Running that does the actual install of XCode 4.

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Did you already have a non-App Store version of the app installed? When I installed Opera from the App Store, it replaced my existing version of Opera, which I had not installed in Applications.

You can locate the app by using Spotlight. Click the magnifying glass in the top-right corner of your screen and type the name of the application in. Click "Show all", right-click on the application, and select "Open enclosing folder".

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The app file is located in a system folder so that it could not be found by Spotlight. But thanks anyway =) –  backspacer Mar 5 '11 at 15:57

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