Error: The file is not a correct arm64 binary. Try thinning (via lipo) or unarchiving (via ar) first

[ryanbooker]

Have you seen this error before? The fat framework definitely includes an arm64 slice and runs fine on device.

[darrarski]

This is a strange issue, probably caused by compiler optimization. I experienced it, but the actual problem was with arm64-to-sim, as described here. In debug mode, the make-xcframework will print the correct error to the console, but in release mode, the message you are seeing is printed.

For now, I don't have a fix for arm64-to-sim. It works with some frameworks (like GoogleCast or GoogleInteractiveMediaAds) but does not for others.

You can omit -arm64sim flag when running make-xcframework and the XCFramework should be created for you, but without arm64-simulator architecture. You can also try to use -verbose flag to get a detailed log of what's going on when the script is run.

[markst]

Just to mention, I also experienced this when attempting to generate xcframework from SpotifyMetadata.framework
bogo/arm64-to-sim#20 (comment)