People is self-motivated in building your city, lead to shortage in lumber. In order to expedite the construction projects, promote the production of lumber.
Build and upgrade Sawmills. Increase lumber basic production to 1,000. You can check the basic production by clicking production option in Town Hall. Infrastructures consume lumber like water-draining. you need to build more Sawmills.
Basic production of Lumber reaches 1,000
- Lumber 5,000