After updating Xcode to 6.1, my launcher was having two icons for Xcode.

here is a quick “how-to” that helps removing duplicate applications in LauchPad:
Open a Terminal (Applications > Utilities > Terminal.app)
Type the following commands:

sudo rm ~/Library/Application\ Support/Dock/*.db
sudo killall Dock

After what there should not be any duplicate

Remove Duplicate Icon form Launcher on OS X Yosemite
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2 thoughts on “Remove Duplicate Icon form Launcher on OS X Yosemite

  • November 14, 2014 at 01:13
    Permalink

    Super, thank you

  • May 26, 2015 at 18:08
    Permalink

    This works, but it also has undesirable side effects, such as losing your wallpaper, and maybe other settings. It might be better to delete database files more selectively.

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