Crafting cottages can be upgraded by either Coins or Farm Cash. The Coin Upgrade replaces the Buy Upgrade button after leveling a certain number of recipes for each building level.
The required number of recipes to level up to make the Coin option available is displayed on top of the Upgrade button. Hovering the mouse cursor on any of the stars will also show the same information.
A window will pop-up to confirm the upgrade. Click the green
Accept to continue. This will cause the game screen to gray out while the building levels up. Please note that it might take a while and it may appear that the game locked up.
Closing or refreshing the game before the process completes will cancel the upgrade.
Once the upgrade is successful, a congratulatory message for the achievement will pop-up. After closing the pop-up, the game will show the newly upgraded building!
Voilà! Your Crafting Cottage is one star higher and there’s an additional station open to craft more goods!
_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
FarmVille 2: Country Escape Game GUIDE
哈利波特：巫師聯盟