import swift class in objective-c, <myModule>-Swift.h file not found

Question

I have an iOS project written with Objective-C. I created an Swift class in the project, the bridging header file for accessing objective-c in Swift is generated successfully, and it works fine.

My problem is the other way around. I want to import Swift class in objective-c code.

In xcode, target -> Build Settings--> Swift Compiler section, I see Objective-C Generated Interface Header Name field with value myModule-Swift.h , but when I import this header in my objective-c class:

#import "myModule-Swift.h" 

I get compiler error:

myModule-Swift.h file not found 

and in project, I cannot find this file either. How can I solve this problem?

My xcode version is 6.4

Answer 1

Updated May 2018 Xcode 9.3

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1. Build Settings->Objective-C Generated Interface Header Name
   and set the value to YourModule-Swift.h (this is usually already set, this is the filename you need to import on .m file #import "YourModule-Swift.h"

(Example, Project named CData)

2. Same as Step 1, Go to Build Settings and search for "Defines Module", set both values to YES

3. Create a class that extends NSObject on .swift file

4. Build the project again

5. Import YourModule-Swift.h file on .m file (Please notice it's case sensitive, Mymodule !== MyModule)

Answer 2

In case anybody is wondering why after spending hours on this issue it is still unresolved, you might be in a situation similar to mine, where I was actually developing a framework, rather than an app.

In such case, the format of the import statement for Objective-C Generated Interface Header is as follows:

---

#import <ModuleName/ModuleName-Swift.h>