'Build input file cannot be found' Swift 4.2, Xcode 10.0

Question

I am getting the following error when building in Xcode 10.0 with swift 4.2:

Answer 1

Change the build setting to legacy

1. First, open your project in XCode by double-clicking on ios/

2. Then go to File > Project Settings...

3. Change the Build System to Legacy Build System in Per-User Project Settings: