---------- UE 4.18 Update ----------
Side Scroller Shooter Kit is now compatible with UE 4.18, but for some reason Epic didn’t include project file (.uproject) to package.
I’ve already send e-mail about this.
For now anyone working on 4.18 - you can download alone project file from here - Microsoft OneDrive - Access files anywhere. Create docs with free Office Online. - and project should work fine.
Sorry for inconvenience