I Found error message is "apple mach-o linker error"

I develop swift app. I Found error message is “apple mach-o linker error” When I write this code in didFinishLaunchingWithOptions method in AppDelegate.swift. I cannot compile complete

why?? this below code is error when compile.
backendless.mediaService = MediaService()

see this error from attach file

Hi!

Do you compile project for emulator or for real device?
Regards,
Kate.

I compile with simulator on Xcode 6.4

Sorry, but media service methods not supported on emulators. You should use real device to avoid such errors.
Regards,
Kate.

I can use xcode7 beta for this library and I compile on real device. but I don’t submit to App Store.

Your screenshot shows that you tried to build your project for simulator (x86_64 arch) - but you can build the project with backendless MediaService only for device archs (arm64, armv7). You have to use the build scheme with device, not with simulator.

http://support.backendless.com/public/attachments/3b710cec42607f43a4115a9376d2d1ca.png</img>

If you will have some problem with your project, send it to me for investigation (without libs): my email - slavav@themidnightcoders.com