I’m building a Swift Package distributed in the form of an XCFramework.

Importing the resulting binary inside a Swift application works just fine, but trying to import it inside of an Objective-c application does not. (file not found or module not found at import statement).

For testing purpose, I just drag n drop the XCFramework into my projects to import it.

What am I missing?

Here is the Swift Package definition:

let package = Package(
    name: "MySDK",
    platforms: [.iOS(.v14)],
    products: [
        .library(
            name: "MySDK",
            type: .dynamic,
            targets: ["MySDK"]),
    ],
    targets: [
        .target(
            name: "MySDK"),
        .testTarget(
            name: "MySDKTests",
            dependencies: ["MySDK"]),
    ]
)

and here is the build script, using xcodebuild (there is no intermediate Xcode project):

# Build for iOS simulator
xcodebuild 
  -workspace ${WORKSPACE} 
  -scheme ${SCHEME} 
  -configuration ${CONFIGURATION} 
  -destination "generic/platform=iOS Simulator" 
  -archivePath "${BUILD_DIR}/archives/${SCHEME}-Simulator" 
  BUILD_DIR=${BUILD_DIR} 
  SKIP_INSTALL=NO 
  DEFINES_MODULE=YES 
  SWIFT_INSTALL_OBJC_HEADER=YES 
  BUILD_LIBRARY_FOR_DISTRIBUTION=YES 
  OTHER_SWIFT_FLAGS="-DCOCOAPODS"

# Build for iOS device
xcodebuild 
  -workspace ${WORKSPACE} 
  -scheme ${SCHEME} 
  -configuration ${CONFIGURATION} 
  -destination "generic/platform=iOS" 
  -archivePath "${BUILD_DIR}/archives/${SCHEME}-Device" 
  BUILD_DIR=${BUILD_DIR} 
  SKIP_INSTALL=NO 
  DEFINES_MODULE=YES 
  SWIFT_INSTALL_OBJC_HEADER=YES 
  BUILD_LIBRARY_FOR_DISTRIBUTION=YES 
  OTHER_SWIFT_FLAGS="-DCOCOAPODS"

######################
# Create universal xcframework
######################
xcodebuild -create-xcframework 
    -framework ${SCHEME}/${BUILD_DIR}/Release-iphoneos/PackageFrameworks/${SCHEME}.framework 
    -framework ${SCHEME}/${BUILD_DIR}/Release-iphonesimulator/PackageFrameworks/${SCHEME}.framework 
    -output ${SCHEME}/${BUILD_DIR}/${SCHEME}.xcframework