Xcode Install problem After installing Xcode and I try to open it I get blocked with a message "Scanning for Plug-in failed" and that I may not have appropriate permission..I was logged-in as an administrator. Do I need "root" privileges?
If you are logged in to the admin account Xcode should open up without issues.

The only reason I can think of for this error would be that the plugin affected was corrupted or failed to install correctly.

You sould remove all xcode files, redownload it and start fresh.