Julius Caesar: Why do I build farmland, grain depots, markets and roads, and say that people have no food?

1. The main reason is that the barn is far from the market and the supply is slow. Even if there is more food, it doesn't mean there are more commodities.

The population is less than the number of employed people, so the delivery of food is affected (in fact, this is also a problem). The market seems to want knights to play a role.

Generally, it is enough to deal with the distance and work distribution reasonably.