Project ‘Project Name’ is missing required source folder: ‘gen’

I came across this error in the recent branching of YAAIC. It was quite a simple fix, for me.

1. Go to Project Properties by right clicking on the project and selecting Properties
2. Select Java Build Path from the left menu
3. Select the Source tab
4. You should see the gen folder referenced as well as the src folder (and potentially many others)
5. Simply click the gen folder and hit Remove
6. Then click Add Folder and select the folder to add it back to the project

If this does not work then please check out this post.