Folder set as 'Project compiler output' at Project Structure | Project is always excluded. Related issue is http://youtrack.jetbrains.com/issue/IDEA-73141, please vote/comment. If output path is overridden for your module then excluded status is managed by 'Exclude output paths' check box or at the Sources tab (red folders).
Folder set as 'Project compiler output' at Project Structure | Project is always excluded. Related issue is http://youtrack.jetbrains.com/issue/IDEA-73141, please vote/comment.
If output path is overridden for your module then excluded status is managed by 'Exclude output paths' check box or at the Sources tab (red folders).