Error building Swift Cocoa Touch Framework after adding Swift file: <unknown>:0: error: could not build Objective-C module

Question

I have a problem creating a Swift Cocoa Touch Framework. As soon as I add my first .swift file, clean, then build I get a build error:

<unknown>:0: error: could not build Objective-C module 'MyTextFramework'

This is easily reproducible from scratch in just a few steps using Xcode 6.1.1

• Create new Cocoa Touch Framework using Swift Language
• Add an iOS swift file
• Build - OK
• Clean - OK
• Build - ERROR
• From here on the project will not build unless I delete the swift file.

I've tried the typical Xcode magic such as deleting derived data, restarting Xcode, etc.

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Steps detailed below with screenshots:

File > New > Project > iOS Framework & Library > Cocoa Touch Framework

Product Name: MyTextFramework

Language: Swift

I now have a bare bones Cocoa Touch Framework.

Add an iOS Swift file named FooBaz.swift

Add a class that extends NSObject and an init function.

The target still builds fine at this point.

Cmd-K to clean the project

Cmd-B to build again... BAM

Answer 1

If you are not going to use this Swift framework from Objective-C, the easiest solution is to get rid of MyTextFramework.h