Problems after upgrading to Xcode 10: Build input file cannot be found

Question

I upgraded my Xcode SDK to version 10 last night and then find I cannot build.

I\'m getting this error:

Build input file cannot be found: \

Answer 1

open the right navigation pane where your project files exist OR JSUT click on cmd + 1 Then search for "Recovered References" Folder open it all red files (delete them) then everything will work so fine .