What is barred circle icon in dock after install to new HD? I just bought a SSD for my MacBook Pro and installed Lion on it and restored from a Time Machine backup. After a few updates and configuring a few things I am mostly good to go. However, Xcode and Aperture have a ghostly barred circle over their dock icons. I needed to download some components for Xcode to get it to run, but it seems fine, but the icon is wrong:



I assumed that it meant that there was a problem restoring the application, but I can't find any information on this. I guess I want to know what it means and how to get rid of it.
Somehow, there was an error while restoring your backup.  

Some user blamed Norton Anti Virus (but I doubt you've installed this software), others just re-installed the app. Both cases seems to work for some users, so you could try both :)