Trouble with auto focus nikon auto nikkor 60 mm f2.8D

The focus ring on that lense will lock when the AF switch on the lens is on auto. Move the switch to manual and it will release the focus ring.

If your lens is 8 months old, it is still in warranty. Contact Nikon for return instructions.

Yes. I have one and it works perfectly on my D90. If you get the version with an aperture ring, be sure to set the aperture to its smallest setting (f/22) and lock it. You control the aperture from the camera, the same way as on a lens without an aperture ring. If you get the version without an aperture ring, don't worry about it.

That's the Nikon error message for a lens with aperture ring set to something other than the minimum (i.e. highest number).
The camera insists on controlling the aperture ring, and to do so, the ring must be set to the minimum setting.
Unless it is a "G" lens, which has no aperture ring whatsoever.
The camera body sets the aperture of the lens wide open while auto-focusing, and displaying through the viewfinder. When it comes time to flip the mirror up and take a picture, the camera dials the aperture to the setting you (or the camera) have selected.

Check to make sure the manual focus/auto focus switch on the lens is set to A. Make sure the lens is completely mounted to the camera and locks securely. If this does not help, or if the lens was dropped, then you should consider buying a new lens. the cost of fixing the old lens may be at least half of the cost of buying a new one.

Switch to M (manual) mode.

Depending on where you live, you can take it to an authorized Nikon repair place or just send it back to Nikon.
In the US, they are in Melville, NY and ElSagundo, Ca.

Try sending it to PhotoTech Repair Service in NYC. They are Nikon authorized, and can do the repair under warranty if you still have it. Also if you join they're facebook page, they will give you a 10% discount.
Here is the facebook page link, it has everything you need to send it in.
http://www.facebook.com/pages/New-York-NY/PhotoTech-Repair-Service-Inc/102527215194

Is the switch on the side of the lens set to manual or auto? Sometimes it's the little things like this that we don't notice.

sir, replace ur lens image reading sensor