Swift Objective-C header is not found when archiving the app

Question

I am trying to add Swift class in one objective-c file for which I had to add *-Swift.h file in my objc file. While the project works fine in debug mode but when I try to archive my app it's throwing error saying that particularly that *-Swift.h file is not found. I tried many solutions but none of them worked. Then I got this question on apple website which is exactly the same problem but his solution which was to set precompile prefix header to YES also did not work for me. ( https://forums.developer.apple.com/thread/7512 ).

I do understand that this header is generated in derived data and build process for debug and archive is different but nothing is working in my case.

I have one framework inside which my app target is located. I am adding the header in my objc as #import "My_Project-Swift.h"

I am using XCode 10.

Answer 1

Here is what worked for me:

1. In Xcode: Product -> Clean (Shift+Cmd+K)
2. Delete Derived Data
3. Change Precompiled Prefix Header to YES in the target build settings
4. Close Xcode
5. Open Xcode
6. Archive