I'm running into issues creating a valid .pkg file for Transporter.app. I'm building an Electron app for the Mac App Store. I have a working build that's live, but I've encountered issues on x86 architectures. The delivery process fails with the following error: Asset validation failed (90981) Invalid bundle. The “com.XXXX.***.pkg/Payload/XXXX.app” bundle supports arm64 but not Intel-based Mac computers. Your build must include the x86_64 architecture to support Intel-based Mac computers. For details, view: https://developer.apple.com/documentation/xcode/building_a_universal_macos_binary. (ID: 56e46e1a-6e77-4468-80e6-249ec8990fa8) My build script that creates the .app and code signs the application uses the productbuild utility to create the .pkg. This is the command: productbuild --sign "$INSTALLER_KEY" --product "./build/requirements.plist" --component "$APP_PATH" /Applications "$RESULT_PATH" From my research, I would have assumed that the requirements property list was all that I would need to specify for the .pkg. This is this contents of /build/requirements.plist/: <?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>arch</key> <array> <string>arm64</string> </array> </dict> </plist> The application included in the .pkg is correctly built for arm64 and I've verified this with: lipo -archs /Path/To/XXXX.app/Contents/MacOS/XXXX arm64 Other research ha led me to solutions via Xcode, but as stated at the beginning I'm using Electron. Any suggestions or insights would be very beneficial.