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Hi all,We have tried to upload our game to App Store Connect, and been greeted by the following e-mail:Dear Developer,We identified one or more issues with a recent delivery for your app, "[REDACTED]" 0.1082057 (0.1082057). Please correct the following issues, then upload again.ITMS-90135: The executable could not be re-signed for submission to the App Store. The app may have been built or signed with non-compliant or pre-release tools.Best regards,The App Store TeamAnd we don't know what has gone wrong with this.Our process is as follows - assume the app is called "AppName":Step 1: Create our AppName.app using xcode 10.3 command line tools, and Unreal Engine's build system.Step 2: a script which does this to produce a PKG:mv AppName.app temp.appditto --rsrc arch x86_64 temp.app AppName.appecho "Updating Info.plist: adding LSApplicationCategoryType"/usr/libexec/PlistBuddy -c "Add :LSApplicationCategoryType string public.app-category.games" AppName.app/Contents/Info.plistecho "Updating Info.plist: setting version numbers"/usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $2" AppName.app/Contents/Info.plist/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $2" AppName.app/Contents/Info.plistecho "Updating the bundle identifier"/usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier [REDACTED]" AppName.app/Contents/Info.plistecho "Signing the code"sign_file() { local LOCATION=`dirname $0` echo " Signing $*" codesign -f -v -s "3rd Party Mac Developer Application: [REDACTED]" --entitlements [ENTITLEMENTS_PLIST] $*}for LIB in $(find AppName.app/Contents -name "*.dylib" -type f)do sign_file $LIBdonesign_file AppName.appecho "Building the package"productbuild --sign "3rd Party Mac Developer Installer: [REDACTED]" --component AppName.app /Applications AppName.pkgmv temp.app AppName.app.bakStep 3 - Upload the build this way:xcrun altool --validate-app -f AppName.pkg -u [REDACTED] -p @keychain:[REDACTED]xcrun altool --upload-app -f AppName.pkg -u [REDACTED] -p @keychain:[REDACTED]Our plist in the package looks like this:<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"><dict><key>CFBundleDevelopmentRegion</key><string>English</string><key>CFBundleExecutable</key><string>[REDACTED]</string><key>CFBundleIconFile</key><string>[REDACTED]</string><key>CFBundleIdentifier</key><string>[REDACTED]</string><key>CFBundleInfoDictionaryVersion</key><string>6.0</string><key>CFBundleName</key><string>[REDACTED]</string><key>CFBundlePackageType</key><string>APPL</string><key>CFBundleShortVersionString</key><string>0.1082057</string><key>CFBundleSignature</key><string>????</string><key>CFBundleVersion</key><string>0.1082057</string><key>LSApplicationCategoryType</key><string>public.app-category.games</string><key>LSMinimumSystemVersion</key><string>10.13.6</string><key>NSAppTransportSecurity</key><dict><key>NSAllowsArbitraryLoads</key><true/></dict><key>NSHighResolutionCapable</key><false/><key>NSHighResolutionMagnifyAllowed</key><false/><key>NSPrincipalClass</key><string>NSApplication</string></dict></plist>And our entitlements plist looks like this:<?xml version="1.0" encoding=UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple/DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"><dict><key>com.apple.security.app-sandbox</key> <true/></dict></plist>