How to fix "IPA processing failed" error in xcode 11?

When I tried to create IPA file using Distribute APP option. It gave "IPA processing failed" error.

I have checked logs file: IDEDistribution.standard.log file.

2019-08-06 18:36:52 +0000 warning: Configuration issue: platform iPhoneSimulator.platform doesn't have any non-simulator SDKs; ignoring it Scanning IPA... 2019-08-06 18:36:52 +0000 Assertion failed: Expected 4 archs in otool output: /var/folders/4t/rpjk7pd55t16jfrd32y98gf0lb2t68/T/IDEDistributionOptionThinning.~~~a4cZJc/Payload/demo.app/Frameworks/AppAuth.framework/AppAuth: Mach header magic cputype cpusubtype caps filetype ncmds sizeofcmds flags MH_MAGIC_64 X86_64 ALL 0x00 DYLIB 23
3680 NOUNDEFS DYLDLINK TWOLEVEL NO_REEXPORTED_DYLIBS Load command 0

I faced same issue.I have fix this issue used this script.
Please follow the same steps.

Build Phases -> plus button -> to create New Run Script Phase

 APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"

find "$APP_PATH" -name '*.framework' -type d | while read -r FRAMEWORK
do
FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
echo "Executable is $FRAMEWORK_EXECUTABLE_PATH"
echo $(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")

FRAMEWORK_TMP_PATH="$FRAMEWORK_EXECUTABLE_PATH-tmp"

case "${TARGET_BUILD_DIR}" in
*"iphonesimulator")
    echo "No need to remove archs"
    ;;
*)
    if $(lipo "$FRAMEWORK_EXECUTABLE_PATH" -verify_arch "i386") ; then
    lipo -output "$FRAMEWORK_TMP_PATH" -remove "i386" "$FRAMEWORK_EXECUTABLE_PATH"
    echo "i386 architecture removed"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_TMP_PATH" "$FRAMEWORK_EXECUTABLE_PATH"
    fi
    if $(lipo "$FRAMEWORK_EXECUTABLE_PATH" -verify_arch "x86_64") ; then
    lipo -output "$FRAMEWORK_TMP_PATH" -remove "x86_64" "$FRAMEWORK_EXECUTABLE_PATH"
    echo "x86_64 architecture removed"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_TMP_PATH" "$FRAMEWORK_EXECUTABLE_PATH"
    fi
    ;;
esac

echo "Completed for executable $FRAMEWORK_EXECUTABLE_PATH"
echo $(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")

done

1.uncheck "Rebuild from bitcode", 2.click next fast fast fast. (speed is also important.)

if not , it will show IPA processing failed.

You should check the Embed Frameworks under Xcode > build phases.

If your framework is introduced here, you can't use i386\x86_64 in your framework. Because the Embed Frameworks are copied to the application. To control the size of the application, the frameworks in the Embed Frameworks are required to be the most streamlined.

You can use Link Binary With Libraries to introduce your framework, as described here: https://github.com/Carthage/Carthage/issues/1046

Note that you need to add a new Run Script and add your framework to it, or it will crash.

To solve similar problem on my end I used the following:

• In app's target I went to the Build Phases
• After the Embed Frameworks and Embed App Extensions sections I've added Run script with the following script:

APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"

# This script loops through the frameworks embedded in the application and
# removes unused architectures.

find "$APP_PATH" -name '*.framework' -type d | while read -r FRAMEWORK
do
    FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
    FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
    echo "Executable is $FRAMEWORK_EXECUTABLE_PATH"

    EXTRACTED_ARCHS=()
    for ARCH in $ARCHS
    do
        echo "Extracting $ARCH from $FRAMEWORK_EXECUTABLE_NAME"
        lipo -extract "$ARCH" "$FRAMEWORK_EXECUTABLE_PATH" -o "$FRAMEWORK_EXECUTABLE_PATH-$ARCH"
        EXTRACTED_ARCHS+=("$FRAMEWORK_EXECUTABLE_PATH-$ARCH")
    done

    echo "Merging extracted architectures: ${ARCHS}"
    lipo -o "$FRAMEWORK_EXECUTABLE_PATH-merged" -create "${EXTRACTED_ARCHS[@]}"
    rm "${EXTRACTED_ARCHS[@]}"

    echo "Replacing original executable with thinned version"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_EXECUTABLE_PATH-merged" "$FRAMEWORK_EXECUTABLE_PATH"
done

The script I took from here: https://medium.com/@maximbilan/ios-submission-unsupported-architectures-issues-733917a98cc3, credits goes to Daniel Kennet!

Also, be aware that this script could also cause compilation errors. In such case, here's the solution: Errors building Xcode Project after adding in Run Script fatal error: lipo: input file

On my end I also noticed that I have to turn off this script when compiling app locally (on development devices/simulator)

Hope that helps!

It seems that a dynamic library with i386 or x86_64 architecture is not allowed when archive in Xcode 11. And I fixed it by removing those architectures from the mentioned frameworks