Not working on a real device

[ChrisMash]

asl_search returns a nil response on a device, but works in the simulator. XCode 8.3, iOS 10.3, any ideas?

I imported the code manually as cocoa pods wasn't working, it couldn't find it for some reason.

[zixun]

Yes，in swift it will not work on the device, only work in the simulator, I think this is a performance optimization for swift provide by apple. because it will work on the device in the Objective-C code