Ios Problem Overview
Solution 1 - Ios
Solution 2 - Ios
The strikethrough occurs if you try to import a module that has already been imported by your file or module:
In this case, I have already imported Foundation (which implicitly imports CoreFoundation), so Xcode is telling you that there is no need to import either module again.
Solution 3 - Ios
It usually happens when a framework is already imported by any other framework you have already been imported.
For example, UIKit is already imported with Foundation so you don't need to import it manually.
Solution 4 - Ios
I changed the order of the imports
import Atlas < red line
Some notes that may be causing it:
LayerKit importing Atlas even though LayerKit is the lower level API Atlas is the UI layer
Both were Cocoapod imports
Error appeared when I created an 2nd Schema for App Store/Enteprise releases and cleaned one and switch to the other.
Deleting Derived Data didnt clear it.
So tried rearranging them and red line disappeared