I can't no longer access Itunes. Keep getting error message 127. I tried uninstalling Itunes, but can't. So frustrated. Please help.

Question

I can't no longer access Itunes.  Keep getting error message 127.  I tried uninstalling Itunes, but can't.  So frustrated.  Please help.

Answer 1

First, if you've moved the iPhoto library to an external drive, make sure that drive is mounted by opening it in the Finder.
The issue can be caused by sharing the photo library on a network (against Apple's advice) or by opening it in more than one local user account at the same time. You may be able to clear the error by logging out or restarting the computer. If not, do as follows.
Quit iPhoto if it's running, locally or on any file-sharing client. Select the iPhoto Library in the Finder. Usually it's in the Pictures folder, but you may have moved it somewhere else. Right-click or control-click the library icon and select
          Show Package Contents
from the popup menu. In the folder that opens, navigate to
Database/apdb/lockfile.pid
and move that file, if it exists, to the Trash. Close the Finder window.
Credit for this observation to ASC member Elijahg.