No Umbrella Header Found for Target, Module Map Will Not Be Generated

no umbrella header found for target, module map will not be generated

Add a CKCountdownButton.h in framework fixed this issue.

I think the umbrella header means the header file with same name like Framework

no umbrella header found for target

so I learned about build phases and under header for Logger, i added logger.h in it's public interfaces.

Is it a bug or I don't know that Xcode didn't add any headers for the 3rd target/module automatically, it did add for the second one.

I added another target just for the test and header file is included, so this problem happens if you add a 3rd target/module (framework).

Hope it helps someone.

Umbrella Header Not Found When Changing Target Name or Product Name of Framework

It turns out the "umbrella header" is no other than the 'main' header for the framework that is created automatically by Xcode when you first create the project or framework target, and it must have the same name as the target (as explained, for example, here).

As to why both target and product must me named the same, I can only guess it has to do with keeping linking not too complicated (Apps are not 'linked against', so I guess there is no damage in the product name being anything you want).

I was trying to get away with a Single Header to Rule Them All (platforms), using TargetConditionals.h etc. to import either Cocoa.h or UIKit.h, which is impossible, because Xcode won't let you use the same name for both targets, and those have to match the name of their headers!

So, I settled for:

: Classic. Accept No Substitutes. Exclusive for iOS, and
: Now Available on the Mac too! - From the People Who Brought You MyFramework

Swift Framework: Umbrella header '[...].h' not found

This will happen, when the Always Search User Paths setting is enabled for the Framework target.

Setting it to No will resolve that error.

IMHO this is a bug in the Swift Compiler and I have filed a radar with Apple.

See rdar://21038443

ModuleMap: How can I set a relative path for the umbrella header?

My guess is you're modifying the generated modulemap. Create a modulemap file at /Users/Robert/Temp/MyProject/Sources/ModuleA/include/module.modulemap containing:

module ModuleA {
    umbrella header "ModuleA.h"
    link "ModuleA"
    export *
}

Run $ swift package clean to remove the old generated modulemap in .build directory and $ swift build to confirm that the custom modulemap works.
Then delete the generated Xcode project and re-generate it.