'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

I had the same problem with a missing view controller file that couldn't be found after cloning a project in a new folder. I deleted the view controller but the compiler continue asking for a file in a path that doesn't exist anymore.

I solved the problem as follows:

• Select the project target in the Project-navigator,
• Go to Build Phases tab
• In Compile Sources section, check for the file that the compiler is asking for. You can filter by the name at the top right of the screen.
• The deleted file is still on the list with a wrong path, delete it by clicking on the minus icon. You have to do it for all the target you may have.
• In the case that you still use the file, add it on a new path by clicking the plus icon.
• Clean Build Folder in the Product Menu.

It should work now :D

(Objective-C Project / Xcode Version 10.2.1 (10E1001))