Shun Cheung , Dec 17, 2007; 05:14 p.m.
Fee indicates that a lens with aperture ring is not set at its minimum aperture. If the aperture is already set at the minimum, and the camera works with G lenses, the problem is related to the EE Servo Coupling Post. Do a search on that term and you'll find a lot of answers.
If those lenses work on a D80, most likely it is the button on your D70 for detecting the EE Servo Coupling Post is broken. It is outside of the lens mount at the 8 o'clock position.