Drag the iTunes icon with the alias name to the desktop and let it go "poof". Now open iTunes from your application folder, when the iTunes icon appears in the Dock, right click on it, select options, "keep in Dock". You're done.
Try it as suggested above, an alternate method.
But, do you have an alias of iTunes in your Applications Folder? If so, to find out where the "real" one is, highlight the alias icon and select Get Info.
Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.