After installing OS X Yosemite, iTunes application doesn't work!!

Question

I just installed Yosemite on my MacBook Pro, and now I can not access iTunes! The icon is there, but it is unresponsive. All other applications appear to be working, iTunes is the only application I am having this issue with. Has anyone else had this issue, and is there a way to fix it?

Answer 1

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Try to launch iTunes by double-clicking it in the Applications folder. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
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