Can't built Lighting


I’ve got some problems with building my lighting. At first I got the error that my Lighting needs to be rebuilt WorldSettings_1, but after building it, the error still appeared. (UE 4.17)
The I decided to upgrade to 4.18 and now I still receive the lighting error in the editor.
Furthermore I now receive a new one… a picture is attached…

I hope somebody can help me fixing it.