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I can't build my app on Xcode12 anymore. Looks like the new introduced arm64 causes the problem. First, My app has 2 parts: My framework A. My app B. The above framework A will be integrated into app B. So my build process contains 2 steps: Compile the framework B (for Any iOS Devices (arm64, arm7)) . I have to exclude the arm64 arch from my Build Settings. Otherwise Xcode gives me error like: export TOOLCHAINS\=com.apple.dt.toolchain.XcodeDefault\ com.apple.dt.toolchain.XcodeDefault     export TOOLCHAIN_DIR\=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain     export TREAT_MISSING_BASELINES_AS_TEST_FAILURES\=NO     export UID\=501     export UNSTRIPPED_PRODUCT\=NO     export USER\=tenderretail     export USER_APPS_DIR\=/Users/tenderretail/Applications     export USER_LIBRARY_DIR\=/Users/tenderretail/Library     export USE_DYNAMIC_NO_PIC\=YES     export USE_HEADERMAP\=YES     export USE_HEADER_SYMLINKS\=NO     export USE_LLVM_TARGET_TRIPLES\=YES     export USE_LLVM_TARGET_TRIPLES_FOR_CLANG\=YES     export USE_LLVM_TARGET_TRIPLES_FOR_LD\=YES     export USE_LLVM_TARGET_TRIPLES_FOR_TAPI\=YES     export VALIDATE_DEVELOPMENT_ASSET_PATHS\=YES_ERROR     export VALIDATE_PRODUCT\=NO     export VALIDATE_WORKSPACE\=YES_ERROR     export VALID_ARCHS\=arm64\ armv7\ armv7s\ i386\ x86_64     export VERBOSE_PBXCP\=NO     export VERSION_INFO_BUILDER\=tenderretail     export VERSION_INFO_FILE\=Framework_vers.c     export VERSION_INFO_STRING\=\"@\(\#\)PROGRAM:Framework\ \ PROJECT:TenderRetailConnector-\"     export WRAP_ASSET_PACKS_IN_SEPARATE_DIRECTORIES\=NO     export XCODE_APP_SUPPORT_DIR\=/Applications/Xcode.app/Contents/Developer/Library/Xcode     export XCODE_PRODUCT_BUILD_VERSION\=12B45b     export XCODE_VERSION_ACTUAL\=1220     export XCODE_VERSION_MAJOR\=1200     export XCODE_VERSION_MINOR\=1220     export XPCSERVICES_FOLDER_PATH\=/XPCServices     export YACC\=yacc     export arch\=undefined_arch     export variant\=normal     /bin/sh -c /Users/tenderretail/Library/Developer/Xcode/DerivedData/TenderRetailConnector-cdiyhmyjkzsinpavptxmkdlzwmbv/Build/Intermediates.noindex/DependantBuilds/TenderRetailConnector.build/Debug-iphonesimulator/Framework.build/Script-52DF69561A82C025000FFE9B.sh BUILD SUCCEEDED fatal error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/lipo: /Users/tenderretail/Library/Developer/Xcode/DerivedData/TenderRetailConnector-cdiyhmyjkzsinpavptxmkdlzwmbv/Build/Products/Debug-iphoneos/libTenderRetailConnector.a and /Users/tenderretail/Library/Developer/Xcode/DerivedData/TenderRetailConnector-cdiyhmyjkzsinpavptxmkdlzwmbv/Build/Products/Debug-iphonesimulator/libTenderRetailConnector.a have the same architectures (arm64) and can't be in the same fat output file Command PhaseScriptExecution failed with a nonzero exit code However, after I compiled my app A (integrated with compiled framework B, for Any iOS Device), I failed to create the IPA when I got to Product -> Archive -> Distribute App -> Ad Hoc. Xcode returns errors: The archive contains nothing that can be signed I Googled it, some devs said the error is caused by lacking of arm64 support in your project. But I can't compile my framework A if I enable the arm64 in its project build settings. So looks like the arm64 causes the controdict in my build process. Is there anyone got the similar errors? Do you have any clue for me to fix it? I think I miss something in my project setup. The exact development environment is: MacOS: Catalina 10.15.7 Xcode: 12.2 (12B45b)

My issue is like the title. I recently upgraded my Xcode11 to Xcode12. I recompiled my own application and archived TestA.ipa. My purpose: I have to access the console log generated by my TestA.ipa application on Winodows. Previously, I can easily copy console log from TestA.ipa on Windows by the 'File Sharing' in iTune. But now, I can't access the console log from iTune on Windows anymore. When I connect my iPod 7th to Windows, my TestA.ipa doesn't show up in the app list in File Sharing of iTuen. I only see: Clips, GarageBand, iMovie, Keynote, Numbers, Pages. But I didn't see my TestA, previously it was there. Looks like the Xcode12 set some limit for the app access on Windows. As a developer, I am OK to access my TestA.ipa log file from Xcode in MacBook. But for our QA, they only work on Windows machines. I Googled it, but I didn't find the correct solution. I am please if you can give me some clue. My Xcode is 12.3 I am using Windows 10 My iTune is 12.10.3.1 Thanks.