Houses are built, but inhabitants are 0 (Cities: Skylines)

This is the bug that haunts me for the second time I have created a game. She created a city, built roads, marked out zones. After a while, houses began to be built, but after its construction, the number of inhabitants is equal to zero, and no matter how long I wait. The number of city residents does not increase.
Please help to solve this problem.
Thank you in advance