This is my first framework using Swift language and it's private framework. It's worked as expected until new Xcode 9.3 release. After upgrading newer Xcode got an issue like this Module compiled with Swift 4.0.3 cannot be imported in Swift 4.1.
After that only I realized framework doesn't support auto version (Xcode/Swift) upgrade, Did some search found there is a Universal or Fat Binary Framework single build instead of separate build for real device and simulator which I missed in previously.
UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal
# Make sure the output directory exists
mkdir -p "${UNIVERSAL_OUTPUTFOLDER}"
# Next, work out if we're in SIM or DEVICE
xcodebuild -target "${PROJECT_NAME}" -configuration ${CONFIGURATION} -sdk iphonesimulator ONLY_ACTIVE_ARCH=NO BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" clean build
xcodebuild -target "${PROJECT_NAME}" ONLY_ACTIVE_ARCH=NO -configuration ${CONFIGURATION} -sdk iphoneos BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" clean build
# Step 2. Copy the framework structure (from iphoneos build) to the universal folder
cp -R "${BUILD_DIR}/${CONFIGURATION}-iphoneos/${PROJECT_NAME}.framework" "${UNIVERSAL_OUTPUTFOLDER}/"
# Step 3. Copy Swift modules from iphonesimulator build (if it exists) to the copied framework directory
BUILD_PRODUCTS="${SYMROOT}/../../../../Products"
cp -R "${BUILD_PRODUCTS}/Debug-iphonesimulator/${PROJECT_NAME}.framework/Modules/${PROJECT_NAME}.swiftmodule/." "${UNIVERSAL_OUTPUTFOLDER}/${PROJECT_NAME}.framework/Modules/${PROJECT_NAME}.swiftmodule"
# Step 4. Create universal binary file using lipo and place the combined executable in the copied framework directory
lipo -create -output "${UNIVERSAL_OUTPUTFOLDER}/${PROJECT_NAME}.framework/${PROJECT_NAME}" "${BUILD_PRODUCTS}/Debug-iphonesimulator/${PROJECT_NAME}.framework/${PROJECT_NAME}" "${BUILD_DIR}/${CONFIGURATION}-iphoneos/${PROJECT_NAME}.framework/${PROJECT_NAME}"
# Step 5. Convenience step to copy the framework to the project's directory
cp -R "${UNIVERSAL_OUTPUTFOLDER}/${PROJECT_NAME}.framework" "${PROJECT_DIR}"
# Step 6. Convenience step to open the project's directory in Finder
open "${PROJECT_DIR}"
fi
At Edit Scheme -> Archive -> Post-Action -> Run Script
This time I am used Swift Compiler - Language -> Swift 3.3
And I got expected output this time too in Xcode 9.3 with Swift 4.1
When I try to run the project with this framework at Xcode 9.2 it's show error like this
Module compiled with Swift 4.1 cannot be imported in Swift 3.2.3:
Try to resolve with backward compatibility and I didn't find. How can I run this framework in Xcode 9.2
Framework support: Swift and Objective C, Min OS iOS 8.0
**Update**
Also got something like this error
compiled with newer version of Swift language (unknown ABI version 0x06) than previous files (4.0) file 'MAC location' for architecture armv7
And tried this to my project