Q.growing eggplants
I have 2 huge healthy eggplants with lots of flowers, but 2 yrs in a row I have had no fruit. Why? he first year I did fine. My variety is Ichiban.

If you are simply seeing an abundance of foliage growth with little to no blooms, then adding in some extra phosphorus, such as bone meal, should help. If you are seeing blossoms but they do not produce, then pollination may be an issue. You may also be having a pollination issue.
These articles should help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm
https://www.gardeningknowhow.com/edible/vegetables/eggplant/what-to-do-for-eggplant-blossoms-drying-out-and-falling-off.htm