I made a simple app in Swift.
Compilation was on MacBook Pro 16 (Apple M3 Pro) / Sonoma 14.4.1, and the XCode version used was 15.3.
When I run this app on Big Sur(11.5.2) / Intel Core i5 iMac, following message is noticed. "The 'MYAPP' application cannot be opened because this application is not supported on this Mac." If I run MyApp.app/Contents/MacOS/myapp directly, “...Bad CPU type in executable”is displayed.
Build Settings are as follows:
- Minimum Deployments: macOS 11.0
- Architectures: Standard Architectures (Apple Silicon, Intel) - $(ARCHS_STANDARD)
- Build Active Architecture Only : Debug - Yes / Release - No
- Code Signing by : Development ID
and notarization is completed
Additionally, SimpleFirewall (The Network Extension example) works well on Big Sur. I compared all settings with The SimpleFirewall project and couldn't find anything unusual.